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3 years ago

Pls help a girl outttt

Mathematics

2 answers:

Effectus [21]3 years ago

6 0

I believe the last answer would be correct.

Genrish500 [490]3 years ago

5 0

Answer:

95 Degrees Celsius

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8.52 The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches

sweet [91]

Answer:

Heights of 29.5 and below could be a problem.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches.

This means that $\mu = 32, \sigma = 1.5$

There may be a problem when a child is in the top or bottom 5% of heights. Determine the heights of 2-year-old children that could be a problem.

Heights at the 5th percentile and below. The 5th percentile is X when Z has a p-value of 0.05, so X when Z = -1.645. Thus

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

$-1.645 = \frac{X - 32}{1.5}$

$X - 32 = -1.645*1.5$

$X = 29.5$

Heights of 29.5 and below could be a problem.

4 0

3 years ago

What is 4.0 x 10 by the 2nd power

bixtya [17]

The answer is 400
Have a wonderful day

5 0

3 years ago

Suppose you roll two fair, six-sided dice and record the sum of the numbers that appears on top. What is the probability that yo

vovangra [49]

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: 1/3 chance

Explanation: If you have a 1/6 chance of rolling a four, and then you role two die, you now have two 1/6 chances, meaning you have 1/6 + 1/6, AKA, 1/3 chance

I hope this helped!

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3 0

3 years ago

Convert 5 over 8 to a decimal and tell whether it terminates or repeats.

AURORKA [14]

Answer: The answer is D. .625

Step-by-step explanation: It terminates, meaning that it doesn't repeat itself

7 0

3 years ago

Compare 0.3 and 0.03

Sidana [21]

0.3 is greater then 0.03 because it has less 0's, if you want how they are alike just message me.

3 0

4 years ago

Read 2 more answers