Write an integer to describe a loss of 15 yards

Mathematics

2 answers:

Nataly_w [17]3 years ago

5 0

Loss implies a negative change, so the integer will be -15.

netineya [11]3 years ago

3 0

Answer: -15

Explanation: A loss of 15 yards is a decrease which means that it's negative. So a loss of 15 yards in football can be written as -15.

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in 2018 GRE scores were normally distributed with a mean of 303, and standard deviation of 13. Standford University Graduate sch

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Answer:

The minimum score needed to be considered for admission to Stanfords graduate school is 328.48.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

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:

$\mu = 303, \sigma = 13$