3 ^ 2 x * 3 - 4 * 3 ^ x + 1 equals 0
1 answer:
You might be interested in
Answer: a) 0.6141
b) 0.9772
Step-by-step explanation:
Given : Mean :
Standard deviation :
The formula for z -score :
a) Sample size = 1
For x= 63 in. ,
The p-value =
Thus, the probability is approximately = 0.6141
b) Sample size = 47
For x= 63 ,
The p-value =
Thus , the probability that they have a mean height less than 63 in =0.9772.