Answer: 0.547
Step-by-step explanation:
As per given , we have
Population mean = 
Population standard deviation= 
Sample size : n= 36
We assume that number of apps used per month by smartphone owners is normally distributed.
Let 
be the sample mean.
Formula : 
The probability that the sample mean is between 19.5 and 20.5 :-
[using standard normal distribution table for z]
Hence, the required probability = 0.547
Answer:
the answer on the bottom is
50-22
60-12
Step-by-step explanation:i dont know about the top one though. sorry.
2+5-71
7-71
-64
answer is -64
The GCF of the numerator and denominator in the following fraction of 21m^2n/28mn^2 is 7mn. 21m^2n/28mn^2 = 7mn*3m/7mn*4n = 3m/4n <span>
</span>
Answer:
8 short sleeve shirts
Step-by-step explanation:
Subtract the total amount of of shirts by the number of shirts with long sleeves to find your answer.
