The distribution of resting pulse rates of all students at adams high school was approximately normal with mean \mu = 80μ=80mu, equals, 80 beats per minute and standard deviation \sigma = 9σ=9sigma, equals, 9 beats per minute. only students whose resting pulse rates are in the lower 40\%40%40, percent are eligible join the weight-lifting club. what is the maximum resting pulse rate for students who are eligible to join the weight-lifting club?

Maximum beat per minute for the lower 40% can be 77.

Step-by-step explanation:

Let z* be the z-score associated to the lower 40% bound. Then

P(z<z*)=0.4 By looking one tail z-table, we can find that z*=−0.253.

Let X be the maximum pulse rate among the pulse rates in the lower 40%. Then

z*=-0.253= where

-0.253= and we get X=(-0.253×9)+80=77.723

Since beats per minute can be positivive integer, maximum beat per minute for the lower 40% can be 77

answer: a. 74

step-by-step explanation:

it shows divided evenly, so add the 37+37 = 74

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.