Answer:
5x-7
Step-by-step explanation:
5 times x (a number) subtract 7
Answer:
0.5 = 50% probability a value selected at random from this distribution is greater than 23
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 is the probability a value selected at random from this distribution is greater than 23?
This is 1 subtracted by the pvalue of Z when X = 23. So



has a pvalue of 0.5
0.5 = 50% probability a value selected at random from this distribution is greater than 23
228032142.857
Hope this helps
Answer:
$50.50 = 18 + 5n
Step-by-step explanation: