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zlopas [31]
3 years ago
9

The probability that Gerald makes a three-point shot in basketball is 20%. For practice, Gerald will regularly

Mathematics
1 answer:
denpristay [2]3 years ago
6 0

count all the dots that are greater than 10. you'll get 6 dots. the question is asking for the dots 10 and fewer there is 40 dots in total so you subtract

40-6= 34

the answer is 34/40

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PLEASE HELP
ozzi
Kirk multiplied by 5.

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3 years ago
Please help me with these questions!
love history [14]

Answer:A=1/2xbh

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Step-by-step explanation:

4 0
3 years ago
A population has mean 187 and standard deviation 32. If a random sample of 64 observations is selected at random from this popul
Zina [86]

Answer:

11.51% probability that the sample average will be less than 182

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 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.

Central Limit theorem:

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

In this problem, we have that:

\mu = 187, \sigma = 32, n = 64, s = \frac{32}{\sqrt{64}} = 4

What is the probability that the sample average will be less than 182

This is the pvalue of Z when X = 182. So

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

By the Central Limit Theorem

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

Z = \frac{182 - 187}{4}

Z = -1.2

Z = -1.2 has a pvalue of 0.1151

11.51% probability that the sample average will be less than 182

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3 years ago
The area of a circle is 40 square feet, what is the diameter?
mylen [45]

The diameter is

d≈7.14

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3 years ago
Pharmacist used 826 milliliters of a liquid for an experiment. How many liters of the liquid did the scientist use for this expe
liberstina [14]
Answer: 0.826 litres
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7 0
2 years ago
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