Step-by-step explanation:
The x are the values that you have been given
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Answer:
Sure I'm here
Step-by-step explanation:
For example if there was 5.73810 You would round up to 6.
if the decimal place is .5 or higher you round up but if it is .49 and lower you round down!
Answer: a. The proportion of the population is between 20 and 30 =0.2356
b. The probability that a randomly chosen value will be between 30 and 40 =0.4680
Step-by-step explanation:
Given : Mean :
Standard deviation :
The formula to calculate z-score :-
For x= 20
For x= 30
For x= 40
a.
b.