Answer: a. 0.9876
Step-by-step explanation:
Given : The distribution of total body protein in healthy adult men is approximately Normal with mean 12.3 kg and standard deviation 0.1 kg.
and 
sample size : n= 25
Let x denotes the total body protein in healthy adult men in the sample.
Then, the probability that their average total body protein is between 12.25 and 12.35 kg will be :-

∴ The correct answer is a. 0.9876
Answer:
Calculators from the beginning of the third week to the end of the fourth week = 4048.
Step-by-step explanation:
We know that the rate of production of these calculators after t weeks is given by

To find the number of calculators that have been produced in a period, we need to take the integral of the function above; the desired time is t=2 (beginning of third week) to t=4 (end of the fourth week). Therefore, the number of calculators produced in the given time is

Substitute
and
, observe that the limits of integration will change

≈ 4048
Answer:
295.31
Step-by-step explanation: