3 times 10^4 - 5 times 10^2 =? In scientific notation

Mathematics

1 answer:

olasank [31]2 years ago

6 0

3 times 10^4-5 is 6782 and I really need point so I’m just putting random stuff 45 -67

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What is 5 and 5/32 as a decimal

jok3333 [9.3K]

5.15625

This can be figured out by 1 divided by 2 five times then multiplying by five:

1/2 = 0.5

0.5 / 2 = 0.25

0.25 / 2 = 0.0125

0.0625 / 2 = 0.625

0.0125 / 2 = 0.03125

multiply 0.03125 by 5 and you get 5.15625

then add 5 to get 5.15625

4 0

2 years ago

A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 614 babies bo

MissTica

Answer:

The number of newborns who weighed between 1614 grams and 5182 grams was of 586.

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 mean weight was 3398 grams with a standard deviation of 892 grams.

This means that $\mu = 3398, \sigma = 892$