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KatRina [158]
2 years ago
7

Only number 5 please help

Mathematics
1 answer:
Ilya [14]2 years ago
7 0
B. 60 this can be answered by also knowing degree angle's as it starts at 0 increments of 10
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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
laila [671]

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}

$Z(433)=\frac{433-\ 433}{90}=0

$Z(523)=\frac{523-\ 433}{90}=1

Z lies between o and 1.

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

μ = 433 and μ + σ = 433 + 90 = 523

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.

8 0
3 years ago
HELP CHECK MY ANSWERS, TY!
Romashka [77]

Answer:

That is correct

Step-by-step explanation:

When doing the math you can find that b and d are correct

8 0
3 years ago
Read 2 more answers
The graph of a function is shown:
timama [110]

Answer: a) {-3, -1, 3, 4}

Step-by-step explanation:

f(x) is the output, and x is the input.

Hope it helps :) and let me know if you want me to elaborate.

3 0
3 years ago
1.5 meters equal how many cm
hram777 [196]
1 meter = 100 cm. So 1 1/2 meters = 150 cm.
3 0
3 years ago
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This year, for the spring musical, the Drama Club sold 150% of the number of tickets they sold last year. Last year, the club so
babunello [35]

Answer:

C. 342

Step-by-step explanation:

This year, 150% of last year's tickets were sold.

Last year, 228 tickets were sold.

150% as a fraction is 150/100

To find the amount of tickets sold this year, we take the 150/100 and multiply it by 228:

150/100*228= 342 tickets

7 0
3 years ago
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