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creativ13 [48]
2 years ago
6

Find the measures of center for following. Data Frequency 30 - 34 1 35 - 39 0 40 - 44 3 45 - 49 7 50 - 54 5 55 - 59 10 60 - 64 1

0 65 - 69 21 70 - 74 12 mode
Mathematics
1 answer:
dalvyx [7]2 years ago
3 0

Answer: the mode is 67.2

Step-by-step explanation:

Given that;

Data               Frequency

30 - 34                 1

35 - 39                0

40 - 44                3

45 - 49                7

50 - 54                5

55 - 59               10

60 - 64               10

65 - 69              21

70 - 74               12

Mode = ?

we know that mode is the number that has the highest number of appearance of frequency, so in this case, the data group that has the highest frequency (21) is 65 - 69  

Lower class boundary of the modal group; L = 65

Frequency of the group before the modal group; Fm-1 = 10

Frequency of the modal group; Fm = 21

Frequency of the group after the modal group; Fm+1 = 12

Group width; G = 4

Now using the formula

Mode = L + [ (Fm - Fm-1) / ( (Fm - Fm-1) + (Fm - Fm+1) ) ] × W

so we substitute

Mode = 65 + [ (21 - 10) / ( (21 - 10) + (21 - 12) ) ] × 4

= 65 + [ 11 / 20] × 4

= 65 + 2.2

= 67.2    

Therefore the mode is 67.2

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galina1969 [7]

Answer:

B. 126 degrees

Step-by-step explanation:

lets say the angle is x

the equation we have here is the 8th graders divided by the total number of students is equal to x divided by 360 degrees since a circle has a 360 degree angle.

The equation is:

350/1000=x/360

in number form.

350/1000= 0.35 = 35%

so now we know x/360=35%

126/360=35%

so the answer would be 126 degrees.

<em>Hope that was helpful, if it was please rate it for anyone else who is asking the same question.</em>

4 0
3 years ago
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ss7ja [257]
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7 0
3 years ago
Rearrange the formula A = \pi r ^ ( 2) for r
tatyana61 [14]
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If A = pi*r^2, and we wish to solve for r, then divide both sides by pi:

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3 years ago
A side of a square is 8 3/2  inches. Using the area formula A = s2, determine the area of the square.
Sedaia [141]
We are given that:
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the rule for the area is: A = s^2

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3 years ago
Which of the following are ways whole numbers and rational numbers are different? Select all that apply. ︎whole numbers are a su
mihalych1998 [28]

Answer:

asd

Step-by-step explanation:

asd

8 0
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