Claim: The mean systolic blood pressure of all healthy adults is less than 125 mm Hg . Sample data: For 250 healthy adults, the mean systolic blood pressure level is 121.77 mm Hg and the standard deviation is 15.81 mm Hg . Complete parts (a) and (b).
a. Express the original claim in symbolic form. Let the parameter represent a value with respect to systolic blood pressure of a healthy adult.
□□□
(Type an integer or a decimal. Do not round.)
Use the information given in the figure to find the length KN. If applicable, round your answer to the nearest whole number. The lengths on the figure are not drawn accurately.
Find the slope of the line below. Note: Enter negatives when necessary with no space between the negative sign and the number. If your answer is a fraction, enter your answer as a reduced improper fraction. Ex. 1/3 for 62m=□ type your answer...
Bob has 21 different dress shirts in his wardrobe.
(a) In how many ways can Bob select seven shirts to pack for a business trip?
(b) In how many ways can Bob select 5 of the 7 dress shirts he packed for the business trip? Each one is purposed for the five different events he will attend during the trip.
(a) Bob can select seven shirts to pack for a business trip in □ ways.
(Simplify your answer.)
3. Look at △STU on this coordinate grid. Suppose that △S′T′U′ is the result of a dilation of △STU with center T and scale factor 2 . What are the coordinates of point S? A (4,2)
B. (0,−3)
c. (3,4) D (6,9)
According to a report by CBS News, 25.8% of seniors between 65 and 74 years old still work.
a. When 10 seniors between 65 and 74 are randlomly selected, find the probability that exactly 2 of them still work.
□ (Round to four decimal places, if possible)
b. When 10 seniors between 65 and 74 are randlomly selected, find the probability that at least 5 of them still work.
□ (Round to four decimal places, if possible)
Solve the equation by factoring. Check your solution. If there are multiple solutions, list the solutions from least to greatest separated by a comma. Leave in simplest fractional form.
2x2−x−3=0□
Given data on prisoners by age and courses taken, find: 1. The probability a prisoner takes no classes. 2. The probability a prisoner is under 30 and takes high school or college classes.
Find the probabilities: 1. Probability a randomly chosen doctor is a pathologist: P(pathologist)=0.128. 2. Probability a randomly chosen doctor is a pediatrician or a Doctor of Osteopathy.
Calculate the payback time for a loan of \R 4670,00 with a simple discount rate of 14\% received as \R 3852,75. Choices: a. 16.58 years, b. 1.51 years, c. 1.47 years.
How many standard deviations is Tyler's 11 pounds of sugar from the mean of 5 pounds with a standard deviation of 1.1 pounds? Round to two decimal places.
A hospital has 4 pathologists, 11 pediatricians, and 23 orthopedists. Find the probability of selecting a pathologist and a pediatrician or a doctor of osteopathy.