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marta [7]
2 years ago
15

A researcher is studying psychological factors in academic achievement among teenage girls. One variable she is particularly int

erested in is competitiveness. What information does a measure of variability for the variable competitiveness convey? Check all that apply. Do all teenage girls have the same amount of competitiveness? What is the average value for the variable competitiveness among teenage girls? How consistent are the values for competitiveness among teenage girls? What is the most common value for the variable competitiveness among teenage girls?
Mathematics
1 answer:
horrorfan [7]2 years ago
6 0

Answer:

The correct answer is:option A and B

Step-by-step explanation:

A researcher is studying and examining psychological factors in academic achievement amongst teenage boys. One of the variable he is particularly paying more attention is in determination.

The quantifying of variability for the variable determination suggests how stretched out are the values for determination amid teenage boys (do all boys that are still in their teenage years have the same determination) and how constant are the values of determination amid teenage boys.

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Scores on a test have a mean of 70 and q3 is 83. the scores have a distribution that is approximately normal. find p90. (you wil
Hunter-Best [27]
<span>Answer: Q3 represents 75%, meaning a z of ~0.67 80 - 70 is 10, so the standard deviations is ~14.9. 10 / 0.67 = 14.9 now find the z that represents a score of 90 90 - 70 is 20 20 / 14.9 = 1.34 from a z-table, a z of 1.34 represents a probability of ~90.99% meaning that there is about a 9.01% chance of getting a 90 or better.</span>
5 0
2 years ago
Mr. Gupta gave his students a quiz with three questions on it. Let X represent the number of questions
irakobra [83]

Answer:

24.5 points

8 points

Step-by-step explanation:

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7 0
2 years ago
Given a data set consisting of 33 unique whole number observations, its five-number summary is: [19,32,47,61,77] how many observ
Dafna11 [192]

Given a data set consisting of 33 unique whole number observations, its five-number summary is: [19,32,47,61,77] how many observations are strictly less than 32?

Solution: The five number summary denotes:

Minimum = 19

First Quartile = 32

Median = 47

Third Quartile = 61

Maximum = 77

Since there are an odd number of observations (33) in the data set, the First Quartile (32) must be at the (33+1)/4 = 8.5th position, meaning there are 7 numbers less than 32.

Therefore, there are 7 observations that are strictly less than 32

3 0
2 years ago
Read 2 more answers
RESTAURANTS In 2012, a popular pizza franchise had 2483 restaurants. In 2017, there were 2606 franchised
lisabon 2012 [21]

y  -  2483  =  24.6(x - 2)

Let x represent the number of years after 2010

Let y represents the number of restaurants in x years

2012 is 2 years after 2010

2017 is 7 years after 2010

Number of restaurants owned by RESTAURANTS in 2012 = 2483

This can be represented in coordinate form as (2, 2483)

Number of restaurants owned by RESTAURANTS in 2017 = 2606

This can be represented in coordinate form as (7, 2606)

The equation of a line in point-slope form is:

y-y_{1} = m(x - x_{1}  )

where m represents this slope, and is calculated as:

m = \frac{y_{2} - y_{1} }{x_2-x_1} \\m = \frac{2606-2483}{7-2} \\m = \frac{123}{5} \\m = 24.6

Substitute x₁ = 2, y₁  = 2483, and m = 24.6 into the point-slope equation

The equation in point-slope form becomes:

y  -  2483  =  24.6(x - 2)

Learn more here: brainly.com/question/6497976

5 0
2 years ago
Three teachers equally shared StartFraction 4 Over 5 EndFraction of a flat of paper that was donated to the school. What fractio
melisa1 [442]

Answer:

Each = \frac{4}{15}

Step-by-step explanation:

Given

Fraction = \frac{4}{5}

Teachers = 3

Required

Determine fraction of each teacher

Each fraction is calculated by dividing total fraction by number of teachers as follows:

Each = \frac{Fraction}{Teachers}

Each = \frac{4}{5}/3

Each = \frac{4}{5} * \frac{1}{3}

Each = \frac{4}{15}

4 0
2 years ago
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