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musickatia [10]

3 years ago

8

The value that splits a frequency distribution into two halves, each half with the same number of values, is the ____

1 answer:

anzhelika [568]3 years ago

7 0

Answer:

Median

Step-by-step explanation:

Median divide a frequency distribution in two equal halves. Median lies at the mid point of any frequency distribution data of any values or quantities.

For example if we have any distribution as [5,7,10,15,8,6.65,12,15,2,3] here 6 will be the median of the distribution as 6 lies at the mid point of the distribution

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Suppose a large shipment of telephones contained 21% defectives. If a sample of size 498 is selected, what is the probability th

grandymaker [24]

Answer:

$P(-3\% < x < 3\%) = 0.901$

Step-by-step explanation:

Given

$p = 21\%$

$n = 498$

Required

$P(-3\% < x < 3\%)$

First, we calculate the z score

$z = \sqrt{p * (1 - p)/n}$

$z = \sqrt{21\% * (1 - 21\%)/498}$

$z = \sqrt{21\% * (79\%)/498}$

$z = \sqrt{0.1659/498}$

$z = \sqrt{0.000333}$

$z = 0.0182$

So:

$P(-3\% < x < 3\%) = P(-3\%/0.0182 < z$

$P(-3\% < x < 3\%) = P(1.648 < z$

From z probability, we have:

$P(-3\% < x < 3\%) = 0.901$

6 0

3 years ago

A student bought shoes online. The total cost, t, of the pairs of shoes, s, can be found by the function below. If the student s

Bumek [7]

Answer:

D 9

Step-by-step explanation:

569.37 = 62.50x + 7.23

562.14 = 62.5x

x = 9.04 so 9 pairs

4 0

3 years ago

Mandy has an IQ of 115. We know that the mean () IQ is 100 with a standard deviation of 15. There are 100 people in Mandy’s Alc

Alex787 [66]

Answer: 16

Step-by-step explanation:

Given : Mean : $\mu=100$

Standard deviation : $\sigma =15$

The value of z-score is given by :-

$z=\dfrac{x-\mu}{\sigma}$

For x= 115

$z=\dfrac{115-100}{15}=1$

The p-value : $P(z>1)=1-P(z$

Now, the number of people smarter than Many is given by :_

$100\times0.1586553=15.86553\approx16$

Hence, there are 16 members smarter than Mandy.

8 0

4 years ago

(Please help, will mark Brainliest!!!!)

Olin [163]

Answer:

1. A

2.D

3. Idk what that is

4.B

5.D

6.C

7.D

8.A

9.D

10.C

5 0

3 years ago

Read 2 more answers

Math please helpp giving brainliest

GarryVolchara [31]

Answer:

Step-by-step explanation:

i think J

6 0

3 years ago