Regina deposit 3,500 in savings account

Mathematics

1 answer:

bazaltina [42]3 years ago

8 0

Answer:

What do you need to know its not compleate Do you want me to divide or what

Step-by-step explanation:

You might be interested in

Graph y = 4x - 1. When x = -2, what is the ordered pair of the solution?

Alenkinab [10]

(-9, -1)

(-9,-1) . -1 because that is the y intercept from the equation.

-9 because when you substitute -2 for x, and multiply by 4, you get -8. Then you subtract one, making the x value -9.

Therefore, the ordered pair of the solution is (-9,-1)

Hope this helps, please consider marking branliest if it did.

7 0

3 years ago

The body temperatures of adults are normally distributed with a mean of 98.6degrees° F and a standard deviation of 0.60degrees°

Schach [20]

Answer:

97.72% probability that their mean body temperature is greater than 98.4degrees° F.

Step-by-step explanation:

To solve this question, we have to understand the normal probability distribution and the central limit theorem.

Normal probability distribution:

Problems of normally distributed samples can be 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.

Central limit theorem:

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sample means with size n of at least 30 can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$