Measures of Central Tendency

Problem 801

Fird the median of the set of scores. 44,86,92,58,62,70,9244,86,92,58,62,70,92 58 72 92 70

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Problem 802

What ta the GPA for a student who carned the grades shown below? The grades are based on a 4.0 point maximum \begin{tabular}{|c|c|c|} \hline Class & Credits & Grade \\ \hline Phys ISOC & 4 & B \\ \hline Phys Lab 160C & 1 & C \\ \hline Math 210A & 4 & B \\ \hline Hist 220A & 3 & D \\ \hline \end{tabular} 2.41 3.63 2.50 2.42

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Problem 803

A pie chart shows fish sales: Fish C = 20 degrees.
(a) What percentage is Fish C? (b) Total fish = 156. How many Fish B? (c) Describe Fish D and E.

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Problem 804

Calculate the finance charge for August using an average daily balance method with a starting balance of \$260 and 17% interest. Transactions: Aug 6: -\$89, Aug 14: +\$130, Aug 16: +\$18, Aug 23: +\$32. Round to the nearest cent. Finance charge: \$\square.

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Problem 805

Descriptive statistics How changing a value affects the mean and median
The monthly rents (in dollars) paid by 8 people are given below. (Note that these are already ordered from least to greatest.) 820,895,1020,1060,1075,1120,1145,1145820,895,1020,1060,1075,1120,1145,1145
Send data to calculator
Suppose that one of the people moves. His rent changes from $1145\$ 1145 to $1105\$ 1105. Answer the following. \begin{tabular}{|l|l|} \hline (a) What happens to the mean? & It decreases by $\$ \square. \\ & It increases by $\$ \square. \\ & It stays the same. \\ \hline (b) What happens to the median? & It decreases by $\$ \square. \\ & It increases by $\$ \square. \\ & It stays the same. \\ \hline \end{tabular}

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Problem 806

Question 10 of 15 (1 point) I Question Attempt: 1 of 1
The top 14 speeds, in miles per hour, for Pro-Stock drag racing over the past two decades are listed below. Find the median speed. 180.3202.0190.0201.6190.7201.5192.6201.4193.5201.4194.6199.2195.8196.2\begin{array}{lllllllllllllll} 180.3 & 202.0 & 190.0 & 201.6 & 190.7 & 201.5 & 192.6 & 201.4 & 193.5 & 201.4 & 194.6 & 199.2 & 195.8 & 196.2 \end{array} Send data to Excel 201.4 195.8 194.9 196.0

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Problem 807

إعادة التشانيل ε\varepsilon 5 www-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNsIkr7j8P3jH-IBgucpIG1tT6kRBabGFF3MoAkZ_UVx0N2O2g70GO-k5lo7Hrw0JLYdqz_7HP21X1lk5Sjr.. is the national day_... @dloo_125 FAIRY DRESS-UP - ...I Assignment 2 Question 1 of 15 (1 point) | Question Attempt: 1 of 1 Time Remaining: 1:29:36 Sulaf
One hundred students are shown an eight-digit number on a piece of cardboard for three seconds and are asked to then recite the number from memory. The process is repeated until the student accurately recites the entire number from memory. The following histogram presents the number of trials it took each student to memorize the number. Espa \square Continue Submit Assignmen (c) 2024 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibii

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Problem 808

- Descriptive Statistics www-awa.aleks.com e Mode of a data set Course Home Access code Accesscode... ย Metrya 10 astit chata 4
Here are the numbers of children in 9 elementary school classes. 24,23,19,25,22,14,20,18,1624,23,19,25,22,14,20,18,16 Jamelah Send data to calculator Practice 3 Due Today 11:59 PM
Find the modes of this data set. If there is more than one mode, write them separated by commas. If there is no mode, click on "No mode." — \square

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Problem 809

The data show the population (in thousands) for a recent year of a sample of cities in South Carolina. \begin{tabular}{llllll} 13 & 21 & 24 & 26 & 66 & 16 \\ 23 & 15 & 16 & 30 & 28 & 35 \\ 90 & 18 & 30 & 26 & 21 & 27 \\ 103 & 48 & 22 & 48 & 106 & 34 \\ 33 & 56 & & & & \end{tabular} Send data to Excel
Part: 0 / 8
Part 1 of 8
The data value \square corresponds to the 48th 48^{\text {th }} percentile. \square

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Problem 810

Diet Cola Preference A recent survey of a new diet cola reported the following percentages of people who liked the taste. Find the weighted mean of the percentages. Round the percentage to one decimal place as needed. \begin{tabular}{ccc} Area & \% Favored & Number surveyed \\ \hline 1 & 60 & 2300 \\ 2 & 40 & 2700 \\ 3 & 90 & 1400 \end{tabular} Send data to Excel
The weighted mean is \square \%.

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Problem 811

Calculate the mean length of seedlings: 4,2,4,1,5,3,4,3,7,34, 2, 4, 1, 5, 3, 4, 3, 7, 3. What is [?][]=[]\frac{[?]}{[]}=[]? 36, 22, 7, 10.

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Problem 812

Find the median of the data set 1,2,3,3,3,4,4,4,5,71,2,3,3,3,4,4,4,5,7. What to do if there are two middle numbers?

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Problem 813

Calculate the mean number of dogs from the data: 12,8,6,3,1,612, 8, 6, 3, 1, 6. Mean: [?] dogs.

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Problem 814

Find the mode of the awards data: 1,3,1,5,7,8,101, 3, 1, 5, 7, 8, 10. Mode: [?] Enter the number for the green box.

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Problem 815

Find the median of the fish lengths: 7,2,1,4,5,2,37, 2, 1, 4, 5, 2, 3. Median: [?] cm\mathrm{cm}

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Problem 816

Calculate the mean length of fish in cm: 7,2,1,4,5,2,37, 2, 1, 4, 5, 2, 3. Round to the nearest tenth. Mean: [?] cm

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Problem 817

Find the batting averages for these players: Bruce, Gomes, Nix, Owings, Phillips using average=HitsAt Bats \text{average} = \frac{\text{Hits}}{\text{At Bats}} .

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Problem 818

A basketball player is 6 feet 5 inches tall, or 196 cm196 \mathrm{~cm}. What is the zz score indicating his height above the mean?

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Problem 819

If the formula xˉ1ni=1nx\bar{x}-\frac{1}{n} \sum_{i=1}^{n} x is used to find the mean of the following sample, what is the value of mm ? 43,36,93,2,28,83,10,22,9,84,41,3,13,2043,36,93,2,28,83,10,22,9,84,41,3,13,20 A. 13 B. 15 C. 14 D. 16

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Problem 820

Brooke has scores of 84,72,90,9584,72,90,95, and 87 on her first five quizzes. After taking the sixth quiz, Brooke's mean score increased.
Which could be Brooke's sixth quiz score? Select three options. 85 90 83 86 92

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Problem 821

Which is a better central tendency measure for right-skewed salary data: mean or median? A. Median, B. Mean?

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Problem 822

Find the midpoints for these classes: 0.04.90.0-4.9, 5.09.95.0-9.9, 10.014.910.0-14.9, 15.019.915.0-19.9, 20.024.920.0-24.9, 25.029.925.0-29.9, 30.034.930.0-34.9, 35.039.935.0-39.9, 40.044.940.0-44.9, 45.049.945.0-49.9, 50.054.950.0-54.9.

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Problem 823

Find the mean, median, and mode(s) from this stem-and-leaf plot:
0 | 6 1 | 45 2 | 2338 3 | 4
Mean: Median: Mode(s):

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Problem 824

Given the data pairs (0, 4), (1, 55), (2, 4578), (3, 2), find the mean, median, and mode(s) of the values.

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Problem 825

Find the mean, median, and mode of the data from this stem-and-leaf plot: 0 | 4, 1 | 55, 2 | 4578, 3 | 2.

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Problem 826

Calculate the mean, median, and mode for the data set: 89, 56, 60, 48, 22, 48. Round answers to one decimal place.

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Problem 827

Calculate the mean, median, and mode of these depths: 4.1, 4.1, 4.0, 4.1, 3.9, 4.4, 3.9, 4.3, 4.0, 4.2, 4.0, 3.8.

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Problem 828

Calculate the mean and median weights for offensive and defensive linemen. Compare their weights. Round to one decimal place.

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Problem 829

(a) Calculate the mean and median of offensive linemen weights: 329, 294, 311, 330, 312, 263, 326, 327, 301, 322, 259, 310. (b) Calculate the mean and median of defensive linemen weights: 252, 283, 308, 291, 295, 258, 319, 283, 308, 279, 282, 318. (c) Compare the weights of offensive and defensive linemen.

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Problem 830

Answer the questions. Use the data in the line plot.
6. What is the mode of the set of data?

6, 7, 8 first
7. What is the median of the set of data?
8. What is the mean of the set of data? How is the data spread around the mean?

Complete. Use the data in the table. The table shows the distances Wayne jogged on 5 days. Distances Wayne Jogged on Five Days \begin{tabular}{|l|c|} \hline Day & Distance jogged (km) \\ \hline Monday & 3 \\ \hline Tuesday & 2 \\ \hline Wednesday & 4 \\ \hline Thursday & 5 \\ \hline Friday & 6 \\ \hline \end{tabular} Source: Wayne

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Problem 831

Short Answer
25. (12 points total) We wish to compare reaction time to sound with reaction time to light. In a carefully controlled experiment, the time required to react to a buzzer and the time required to react to a white signal light are obtained for six subjects. Below are the results (in milliseconds): \begin{tabular}{lrrrrrr} \hline Subject & 1 & 2 & 3 & 4 & 5 & 6 \\ Light & 39 & 37 & 44 & 42 & 43 & 41 \\ Buzzer & 35 & 37 & 38 & 41 & 39 & 40 \\ \hline \end{tabular}

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Problem 832

4. Find the mean of high and low temperatures. Which is higher? What is the mean value?
5. Determine which set has the greatest range.

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Problem 833

Find Julia's unit rate of free throws made per minute during the game.

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Problem 834

Find the average number of box springs completed over 3 days (136, 165, 149) and estimate for 5 days. Choices: F. 90, G. 150, H. 450, J. 750, K. 1,050.

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Problem 835

Question Watch V
Find the median and mean of the data set below: 47,15,6,49,45,3047,15,6,49,45,30
Answer Attempt 1 out of 2
Median = \square Mean = \square Submit Answer

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Problem 836

For berylium chloride, 0.076 moles of silver nitrate are used. For magnesium chloride, 0.064 moles of silver nitrate are used. For calcium chloride, 0.055 moles of silver nitrate are used.
How many moles of AgNO3\mathrm{AgNO}_{3} should we use to be sure that we have excess, no matter which of the three compounds it is? a) 0.100 mol b) 0.075 mol c) 0.025 mol d) 0.050 mol

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