Mathematics, 06.09.2019 03:30, idk5233
Table below shows probability distribution of siblings of students in a high school of 1500. what is expected value for the number of siblings of a randomly chosen student?
number of siblings- 0, 1, 2, 3, 4, 5
probability- 0.19, 0.67, 0.08, 0.03, 0.02, 0.01
a. 2.5
b. 1.05
c. 1.24
d. 1.14
Answers: 3
Mathematics, 21.06.2019 16:00, lymariluna73016
Abag has more green balls than blue balls, and there is at least one blue ball. let bb represent the number of blue balls and let gg represent the number of green balls. let's compare the expressions 2b2b and b + gb+g. which statement is correct? choose 1
Answers: 2
Mathematics, 21.06.2019 19:30, sotoamerica0814
What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4
Answers: 1
Mathematics, 21.06.2019 19:40, Candieboo4006
It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?
Answers: 1
Table below shows probability distribution of siblings of students in a high school of 1500. what is...
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