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Yuki888 [10]
1 year ago
8

Ms. Walker gave her students a biology test last week. Here are the test scores for each of the fifteen students. Test scores 81

80 81 95 91 85 92 92 90 82 86 97 93 83 92 (a)Complete the grouped frequency distribution for the data. (Note that the class width is 5.) Test scores Frequency 79 to 83 84 to 88 89 to 93 94 to 98
Mathematics
1 answer:
ella [17]1 year ago
7 0

The completion of the grouped frequency distribution for the test scores of the fifteen students that took the biology test last week is as follows:

Test scores     Frequency

79 to 83                 5

84 to 88                 2

89 to 93                 6

94 to 98                 2

<h3>What is a frequency distribution?</h3>

A frequency distribution is a pictorial or graphical representation that shows the number of observations of each categorical value (a group of values) that occurs.

By showing the frequency counts for each category, it becomes easier to determine and interpret the presented information based on their relative frequencies.

Frequency charts, tables, or graphs are used to display frequency distributions of data.

Learn more about frequency distribution at brainly.com/question/17114842

#SPJ1

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What is the quotient of 0/-6
Komok [63]

you're answer is 0

If the numerator is 0, then your answer is 0

If the denominator is 0, then your answer is *undefined*

This is because, you can have 0 parts of a whole.

hope this helps

3 0
4 years ago
For what value of k are the lines 2x + 3y = 4k and x - 2ky = 7 parallel?
natulia [17]

Answer:

k = -3/4

Step-by-step explanation:

The lines will be parallel if their slopes are equal.  To find the slope of each line, write its equation in slope-intercept form (y = mx + b).  In other words, solve each equation for y and look at the coefficient of x.

2x + 3y = 4k

3y = -2x + 4k

y = (-2/3)x + 4k/3

The slope of the first line is -2/3.

x - 2ky = 7

-2ky = -x + 7

y = [1/(2k)]x - 7/(2k)

The slope of the second line is 1/(2k).

If the slopes are equal, then

1/(2k) = -2/3

Multiply by 2k.

1 = (-2/3)(2k) = (-4/3)k

1 = (-4/3)k

k = -3/4

5 0
3 years ago
What is the equation of the line that passes through the point (-3,-8) and has a slope of 4?
coldgirl [10]

Step-by-step explanation:

the easiest approach with a given point and the slope of the line is the point-slope form :

y - y1 = a(x - x1)

where "a" is the slope, and (x1, y1) is a point on the line.

so, we get

y - -8 = 4(x - -3)

y + 8 = 4(x + 3)

if we need the slope-intercept form

y = ax + b

we now simplify the point-slope form

y + 8 = 4x + 4×3 = 4x + 12

y = 4x + 4

3 0
3 years ago
What do i need to do to answer both questions
Setler79 [48]
You need to solve and find the angle of the triangle
7 0
3 years ago
Read 2 more answers
If we changed the –0.14 to a 2 in the equation, what would happen to the graph?
MatroZZZ [7]

If -0.14 is changed to 2, the graph would become a positive graph, or it would be steeper, because it has a positive slope

The equation of the graph is given as:

y = -0.14x + 3

The above equation is a linear equation, which is represented as:

y =mx + c

Where m represents the slope of the linear equation.

By comparison, we have:

m = -0.14

i.e. the slope of the equation y = -0.14x + 3 is -0.14

When -0.14 is replaced with 2, the equation becomes

y = 2x + 3

And the slope of the new equation y = 2x + 3 is

m =2

2 is greater than -0.14, and 2 is positive.

This means that the graph would become a positive graph, or it would be steeper, because it has a positive slope

Read more linear equations at:

brainly.com/question/19045223

6 0
3 years ago
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