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3 years ago

What is percentile rank?

Mathematics

2 answers:

Kryger [21]3 years ago

7 0

Answer:

In statistics, the percentile rank of a score is the percentage of scores in its frequency distribution that are less than that score.

Step-by-step explanation:

In statistics, the percentile rank of a score is the percentage of scores in its frequency distribution that are less than that score.

Kay [80]3 years ago

4 0

Answer:

The percentile rank is the percentage every score below you occupies. For example, if you had a 86th percentile rank, all the scores below yours would take up 86% of the total score.

Step-by-step explanation:

Hope this helped!

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If the scale factor of figure A to figure B is 4:5, find the value of x.

Vera_Pavlovna [14]

Answer:

im think x = 9

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

You have two pieces of string. One is 8 cm long. The other is 20 centimeters long. You want to cut each piece if string into sma

Minchanka [31]

ah, basically what length can you divide each string to get a certain length

factor each

8=2*2*2

therefor:

8=1*8=2*4=4*2=8*1

so you can have 1 length of string 8cm long

2 lengths of string 4cm long

4 lengths of string 2cm long

8 lengths of string 1cm long

20cm string

factor

20=1*2*2*5

so 20=1*20=2*10=4*5=5*4=10*2=20*1

you can have 1 string 20cm long

2 strings 10cm long

4 strings 5cm long

5 strings 4cm long

10 strings 2cm long

20 strings 1cm long

we need greatest common length

in 8cm stirng, we have 1,2,4,8

in 20cm string, we have 1,2,4,5,10,20

greatest common length is 4

answer is 4cm

alternately, you could have done this:

8=2*2*2

20=2*2*5

common grooup is 2*2=4 so 4 is answer

6 0

3 years ago

A guy wire runs from the ground to a cell tower. The wire is attached to the cell tower 150 feet above the ground. The angle for

vova2212 [387]

Answer: a the guy wire is 150 ft

Step-by-step explanation: b the guy is the wire is 350 sorry not good and english but answer is 350 ft

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3 years ago

Consider the following hypothesis test. H0: μ = 15 Ha: μ ≠ 15 A sample of 50 provided a sample mean of 14.11. The population sta

bearhunter [10]

Answer: -2.10

Step-by-step explanation:

Given : $H_0:\mu=15$

$H_a:\mu\neq15$

Sample size : n= 50, since the sample size is greater than 30 , so we apply z-test.

Sample mean : $\overline{x}=14.11$

Standard deviation : $\sigma= 3$

The test statistic for population mean :-

$z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

i.e. $z=\dfrac{14.11-15}{\dfrac{3}{\sqrt{50}}}=-2.09775011752\approx-2.10$

Hence, the value of the test statistic = -2.10

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4 years ago

Um...I thought I had this right but I guess not. I need this to pass!! Help!

OleMash [197]

Answer:

Step-by-step explanation:

Relocate them in that line , you were close

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4 years ago