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Rama09 [41]
3 years ago
6

What is the measure of the missing angle? 85 60° 25 35

Mathematics
1 answer:
Stels [109]3 years ago
3 0
85 is the measure of a missing angle
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Pretty sure the mean is 5
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Factor completely 2X^3-2x-40
Sholpan [36]
2X^3-2x-40=0
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The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.21 minutes and a st
madam [21]

Answer:

4.55% probability that a randomly selected individual will take less than 5 minutes to select a shoe purchase.

Since Z > -2 and Z < 2, this outcome is not considered unusual.

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.

If Z \leq 2 or Z \geq 2, the outcome X is considered to be unusual.

In this question:

\mu = 8.21, \sigma = 1.9

Find the probability that a randomly selected individual will take less than 5 minutes to select a shoe purchase.

This is the pvalue of Z when X = 5. So

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

Z = \frac{5 - 8.21}{1.9}

Z = -1.69

Z = -1.69 has a pvalue of 0.0455.

4.55% probability that a randomly selected individual will take less than 5 minutes to select a shoe purchase.

Since Z > -2 and Z < 2, this outcome is not considered unusual.

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Name the marked angle in 2 different ways.
ch4aika [34]
Angle KIH and angle HIK
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What is 3/4 divided by 1/24
Musya8 [376]
Dividing fractions is the same thing as multiplying by the reciprocal

3/4 x 24/1 = 18
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3 years ago
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