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Contact [7]
3 years ago
13

Does the frequency distribution appear to have a normal distribution using a strict interpretation of the relevant​ criteria? Te

mperature ​(°​F) Frequency 40-44 2 45-49 0 50-54 5 55-59 14 60-64 7 65-69 6 70-74 1 Does the frequency distribution appear to have a normal​ distribution?
Mathematics
1 answer:
melamori03 [73]3 years ago
5 0

Answer:

The frequency distribution does NOT appear to have a normal distribution using a strict interpretation of the relevant criteria.

Step-by-step explanation:

Note: See the attached excel file for the Graph of Temperature ​(°​F) vs. Frequency.

A normal distribution refers to a bell-shaped distribution that begins at a low value, grows to a maximum value, and then declines to a low value again. It is a symmetric and a single-peaked distribution.

The fact that the frequency in the data in this question first fell from 2 to 0 before rising again to 5 indicates that it is neither a bell-shaped distribution nor a single-peaked distribution. This is also corroborated by the Graph of Temperature ​(°​F) vs. Frequency in the attached excel file which shows that there are two peaks which are 2 and 14.

Therefore, the frequency distribution does NOT appear to have a normal distribution using a strict interpretation of the relevant criteria.

Download xlsx
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Answer:

It's 78.6

Step-by-step explanation:

I hope this helps you

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3 years ago
If a marble is randomly chosen from a bag that contains exactly 8 red marbles, 6 blue marbles, and 6 white marbles. What is the
frozen [14]

Answer:

Step-by-step explanation:

so theres 8 red marbles, 6 blue marbles, and 6 white marbles so that makes

8 + 6 + 6 = 20 marbles in total

the probability of the marble being white is 6/20 or 3/10

so the probabilty of the marble NOT being white is 1 - (3/10) = 7/10

8 0
3 years ago
Which equation in slope-intercept form represents a line that passes through the point (2,3) and is parallel to the line y-9=2/3
lesya692 [45]

Answer:

y=(2/3)x+5/3

Step-by-step explanation:

y-9=2/3(x+7)

y=(2/3)x+14/3+9

The slope of this line is 2/3, and if a line is parallel to this line, their slopes are the same. So the line is:

y=(2/3)x+b (where b is the y-intercept)

We can plug in the values (2,3) into this equation to find b:

3=(2/3)*2+b

3=4/3+b

b=5/3

The equation is: y=(2/3)x+5/3

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3 years ago
Jim has grades of 84, 65, and 76 on three math tests. What grade must he obtain on the next test to have an average of exactly 8
Fynjy0 [20]
x-\ frade\ from\ next\ test\\\\
\frac{84+65+76+x}{4}=80\ \ \ \ | multiply\ by\ 4\\\\
225+x=320\ \ \ \ | subtract\ 225\\\\
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8 0
3 years ago
Read 2 more answers
A scale drawing of a square object has a scale of 1 in. : 5 mm. The scale drawing has a length of 2.5 inches. Find the perimeter
luda_lava [24]

Answer:

Perimeter and area of drawing

Perimeter= 10 In

Area = 6.25 In²

Perimeter and area of object

Perimeter = 51.836 mm

Area = 167.936 mm²

Step-by-step explanation:

We are dealing with a square object, so let's talk about the drawing first.

The length of one side = 2.5 In

Perimeter of square= 4L

Perimeter = 4*2.5

Perimeter= 10 In

Area = L*L

Area = 2.5*2.5

Area = 6.25 In²

Letd note that 1 inch =

25.4 millimetres

So 2.5 Inch = 2.5 * 25.4

2.5 In = 63.5 mm.

25.4 mm is to 5mm

63.5 mm is to (63.5*5)/24.5

63.5mm is to 12.959 mm

So the length of actual object is 12.959mm

The perimeter = 4*12.959

Perimeter = 51.836 mm

Area = 12.959²

Area = 167.936 mm²

7 0
3 years ago
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