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aleksklad [387]
3 years ago
13

Which correlation should be used to measure the relationship between gender and grade point average for a group of college stude

nts??
a. ?point-biserial correlation

b. ?pearson correlation

c. ?phi-coefficient

d. ?spearman correlation?
Mathematics
2 answers:
elena-s [515]3 years ago
6 0

Answer:

I just took the test. The answer is A

Step-by-step explanation:

Alecsey [184]3 years ago
4 0
I believe the correct answer would be A. The best correlation to use to measure the relationship between gender and grade point average for a group of college students would be the point-biserial correlation. It is coefficient that is used when a variable is dichotomous or that the variable is part of a whole set. It is used in measuring the direction of the correlation that is present between a dichotomous variable and a continuous variable. From the  question, the dichotomous variable would be the grade point average for a group of college students while the other variable is the continuous one. 
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A study conducted an experiment with 22,000 women over 10 years to investigate whether a high-stress job leads to heart problems
solniwko [45]
The sample of the group would be the 22,000 participants.
3 0
3 years ago
Find 5x − 3y − z if x = −2, y = 2, and z = −3 <br> Select one: a. −19 b. 19 c. 13 d. −13
NeTakaya

Answer:

-13

Step-by-step explanation:

5x − 3y − z

substitute x = −2, y = 2, and z = −3

5(-2) -3(2) - (-3)

multiply

-10 -6 +3

-16 +3

-13

7 0
3 years ago
Why do whole numbers raised to an exponent get bigger while fractions raised to an exponent get smaller
Brilliant_brown [7]

Answer:

when you multiply a whole number by itself it will obviously get bigger.

4 to the 2nd power equals 16 because 4x4 = 16

if you were to multiply a smaller number though, it wouldn't get as big.

Each number you put to the same exponent will not get bigger at the same rate since each number isnt being multiplied by the same thing.

ex. 4 and 6 are raised to the second power both dont get multiplied by the same number 4 is multiplied by 4, and 6 by 6, therefore the bigger the number the bigger it grows.

Fractions get smaller for this reason when you have the fraction 2/3 raised to the second, both numbers must be raised. 2 to the second equals 4 while 3 to the second is 9.

1/2 to the second would then equal 1/4 since 1 to the second equals 1 and 2 to the second equals 4.

Step-by-step explanation:

5 0
3 years ago
A block of wood is 2.5 feet long, 0.5 feet wide, and 0.25 feet tall. It weighs 16.5 pounds.
AysviL [449]

Answer:

Density = 52.8 pound per cubic feet.

Step-by-step explanation:

Given the following data;

Length = 2.5 feet

Width = 0.5 feet

Height = 0.25 feet

Mass = 16.5 pound

To find the density of the wood;

First of all, we would determine the volume of the wood.

Volume = length * width * height

Volume = 2.5 * 0.5 * 0.25

Volume = 0.3125 cubic feet

Next, we find the density;

Mathematically, density is given by the formula;

Density = mass/volume

Substituting into the formula, we have;

Density = 16.5/0.3125

Density = 52.8 pound per cubic feet.

3 0
3 years ago
Use the GCF of the terms to write the expression as the product of two factors with integer coefficients.
lana66690 [7]

-2x^3 - 4x^2 + 4x

-2x^3 = -2x(x^2)

-4x^2 = -2x(2x)

4x = -2x(-2)

so GCF= -2x

-2x3 - 4x2 + 4x = -2x(x^2 + 2x - 2)

answer is B. -2x(x^2 + 2x - 2)

3 0
3 years ago
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