Answer:
20.2
Step-by-step explanation:
181.1 divided by the amount of days Susie ran.
Answer:
2.28% of tests has scores over 90.
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.
In this problem, we have that:
What proportion of tests has scores over 90?
This proportion is 1 subtracted by the pvalue of Z when X = 90. So
has a pvalue of 0.9772.
So 1-0.9772 = 0.0228 = 2.28% of tests has scores over 90.
Answer:
The sample proportion from the sample of 900 is more likely to be close to the true population proportion, p.
Step-by-step explanation:
for the first one
Answer: $547200
Median salary of masters older is 68,100
Total after 36 years= 68,100*36 = $2,451,600
Median Salary of BSc holder is $52,900
Total median salary after 36 years is 52,900*36 = 1,904,400
The difference is $2,451,600-1,904,400 = 547,200
The person with Masters will earn $547,200 after 36 years
Step-by-step explanation:
Answer:
I believe it would be 0 and up
Step-by-step explanation:
|x + 3|
|3 + 3|
3 - 3 = 0
and X can be any number higher than two so it would go up by one each time. 0,1,2,3 etc..