What is 40 1/3 divided by 50

Mathematics

2 answers:

solong [7]3 years ago

8 0

121/150 or 0.0806. The 6 is repeating itself.

scoray [572]3 years ago

4 0

40 1/3 divided by 50 = 121/150

You'll convert the mixed number into an improper fraction which is:
121/3 divided by 50

Then make 50 into a fraction which is 1/50. Then multiply the fractions.

121/3 x 1/50

121 x 1 = 121
3 x 50 = 150

So the answer is 121/150

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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 $\mu = 32, \sigma = 1.5$