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Mathematics

1 answer:

Harrizon [31]3 years ago

3 0

Answer:

Step-by-step explanation:

The A

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Y+3=2(x-1) on a graph

topjm [15]

Answer:

see attachment

Step-by-step explanation:

6 0

3 years ago

HELP!! ASAP!!! Please make sure your confident with answer :) already on 2nd attempt! Please help! Will give brainliest! :)

alexdok [17]

Y=2 its C
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6 0

2 years ago

Read 2 more answers

A humanities professor assigns letter grades on a test according to the following scheme. A: Top 12% of scores B: Scores below t

RUDIKE [14]

Answer:

The minimum score required for an A grade is 88.

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:

$\mu = 77.8, \sigma = 8.5$