X=5 if you solve the equation 20=8x/2
Answer: $180
4ft + 5ft + 4ft + 5ft = 18ft
18 x 10 = 180
Answer:
Considering the average fence size is 4 feet Kara will need 24 fences
Step-by-step explanation:
94/4= 23.5
simplified 24
She uses 4/3 (1 1/3) pint of hair gel in 4 days
Answer:
18.67% probability that the sample proportion does not exceed 0.1
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
For the sampling distribution of a sample proportion, we have that 
In this problem, we have that:

What is the probability that the sample proportion does not exceed 0.1
This is the pvalue of Z when X = 0.1. So



has a pvalue of 0.1867
18.67% probability that the sample proportion does not exceed 0.1