pencils come in cartons of 24 boxes. a school bought 50 cartons of pencils for the start of school. each box of pencils cost $2.
2 answers:
You might be interested in
Answer:
$8.59
Step-by-step explanation:
The unit price is just asking for what one pair of gloves cost.
∴The unit price of the pairs of gloves is $8.59
Hope this helps!
Using z-scores, it is found that the value of z is z = 1.96.
-----------------------------
Normal Probability Distribution
Problems of normal distributions can be solved using the z-score formula, which for a measure X, in a distribution with mean and standard deviation
, is given by:
- It measures how many standard deviations the measure is from the mean.
- Each z-score has an associated p-value, which is the percentile.
- The normal distribution is symmetric, which means that the middle 95% is between the <u>2.5th percentile and the 97.5th percentile</u>.
- The 2.5th percentile is Z with a p-value of 0.025, thus Z = -1.96.
- The 97.5th percentile is Z with a p-value of 0.975, thus Z = 1.96.
- Thus, the value of Z is 1.96.
A similar problem is given at brainly.com/question/16965597