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neonofarm [45]
3 years ago
15

Someone help pls!!! :)))

Mathematics
1 answer:
Damm [24]3 years ago
7 0

Answer:

180° × π/180 = 3.142rad

Step-by-step explanation:


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SAT verbal scores are normally distributed with a mean of 433 and a standard deviation of 90. Use the Empirical Rule to determin
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34% of the scores lie between 433 and 523.

Solution:

Given data:

Mean (μ) = 433

Standard deviation (σ) = 90

<u>Empirical rule to determine the percent:</u>

(1) About 68% of all the values lie within 1 standard deviation of the mean.

(2) About 95% of all the values lie within 2 standard deviations of the mean.

(3) About 99.7% of all the values lie within 3 standard deviations of the mean.

$Z(X)=\frac{x-\mu}{\sigma}

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Z lies between o and 1.

P(433 < x < 523) = P(0 < Z < 1)

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Using empirical rule, about 68% of all the values lie within 1 standard deviation of the mean.

i. e. ((\mu-\sigma) \ \text{to} \ (\mu+\sigma))=68\%

Here μ to μ + σ = \frac{68\%}{2} =34\%

Hence 34% of the scores lie between 433 and 523.

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3 years ago
What is the probability of getting blue and green on a spinner that is 3/10 and 1/5 blue
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Caleb went to Kroger and spent $83.47 on groceries. He had a coupon for $1.99 off bottled water and $0.89 off organic strawberri
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Answer:

$86.35

Step-by-step explanation:

Total amount he spent at Kroger

= $83.47 on groceries. +coupon for $1.99 off bottled water + $0.89 off organic strawberries

= 83.47+0.89+1.99

= $86.35

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