Drag each expression to show whether it can be used to find the surface area, volume, or neiWhich product is equal to 3x2 – 9x +
1 answer:
You might be interested in
Answer with explanation:
Given : The age that children learn to walk is normally distributed with and
.
Let x be the age that children learn to walk .
B) Using formula
n= 19
For x= 11.5
For x= 12.5
Then, by using the z-value table , for the 19 people, the probability that the average age that they learned to walk is between 11.5 and 12.5 months old will be :-
Hence, for the 19 people, the probability that the average age that they learned to walk is between 11.5 and 12.5 months old = 0.9707
C. Using formula
For x= 11.5
For x= 12.5
Then, by using the z-value table , the probability that the average age that they learned to walk is between 11.5 and 12.5 months old will be :-
Hence, the probability that the average age that they learned to walk is between 11.5 and 12.5 months old = 0.3829