The average pieces of candy eaten by children in your neighborhood on halloween has a normal distribution with a mean of 14 and a standard deviation of 5. what percentage eat less than 10 pieces of candy on halloween

21.19% eat less than 10 pieces of candy on halloween

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 percentage eat less than 10 pieces of candy on halloween

This is the pvalue of Z when X = 10.

has a pvalue of 0.2119

21.19% eat less than 10 pieces of candy on halloween

what are the statements

step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb