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forsale [732]
2 years ago
11

A local real estate agent is interested in the distribution of the square footage of houses in a neighborhood. The following tab

le and diagrams show the distribution of the house sizes for a sample of sixty-nine homes sold in the neighborhood for the past three years. The diagrams presented are the frequency histogram and the relative frequency histogram for the sample. The class mark for the class (25 - 30] is _______.
A) 29.5 B) 27.5 C) 24.5 D)4

Mathematics
1 answer:
Yuri [45]2 years ago
7 0

The class mark for the class, 25 - 30, in the frequency distribution is: B. 27.5.

<h3>What is the Class mark?</h3>

The class mark can be defined as the midpoint or mid-value of a given class interval of a frequency distribution. In other words, it is described as the average of the upper and lower limit of a class interval in a given frequency distribution.

<h3>How to Find the Class Interval?</h3>

To find the class interval, find the sum of the upper limit and the lower limit, then divide the result by 2. The result you get after dividing is the class mark for that class in the frequency distribution.

Given the class, 25 - 30, the upper limit is 30, and the lower limit is 25.

Class mark for the class = (30 - 25)/2

Class mark for the class = 55/2

Class mark for the class = 27.5

Thus, the class mark for the class, 25 - 30, in the frequency distribution is: B. 27.5.

Learn more about the class mark on:

brainly.com/question/19473137

#SPJ1

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<span>To find out how much wax is needed for the candles we need to figure out the volume of each candle. We know radius r=0.5 inches and height h=3 inches of the smallest candle and we know that the middle candle has r2=2r=1 inch and h2=2h=6 inches and the biggest candle has r3=3r=1.5 inches and h3=3h=9 inches. So now we need the formula for volume: V=pi*r^2*h and we simply plug in the numbers. First candle is V=3.14*(0.5^2)*3=2.355 inches^3. Middle candle: V2=3.14*(1^2)*6=18.84 inches^3. Biggest candle: V3=3.14*(1.5^2)*9=63.585 inches^3. So overall wax needed to create all three candles is V+V2+V3=2.355 inches^3 + 18.84 inches^3 + 63.585 inches^3=84.78 inches^3.</span>
8 0
4 years ago
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(I NEED THIS ANSWERED IMMEDIATELY. IT'S WORTH 15 POINTS!!!!!
WITCHER [35]

A zoo has 14 monkeys and 18 chimpanzees.

To write the ratio of numbers x and y we use three ways given below

1. x to y

2. x : y

3. \frac{x}{y}

Now write the ratio in three ways comparing 14 monkeys and 18 chimpanzees.

Let x be the number of monkeys

y be the number of chimpanzees

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3 0
3 years ago
13 over 3 converting improper fractions to mixed number
Rzqust [24]

Answer:

4 1/3

Step-by-step explanation:

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5 0
3 years ago
HELP ME PLS
Nutka1998 [239]

Answer:

Domain={0,30},Range={0,600}

Step-by-step explanation:

Total umbrellas=30

Price of each umbrella=$20

m(u)=20u

where

u is number of umbrellas

m(u) total amount vendor makes by selling u number of umbrellas

So Practically,The extreme cases are

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So Domain is {0,total number of umbrellas}={0,30}

Putting this extreme value of domains as u in function m(u),

we get the range of m(u)={0\times$20,30\times$20}

⇒ Range={0,$600}

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3 years ago
Find the circumference of the circle. Use 3.14 for . Round to the nearest hundredth, if necessary.
iren [92.7K]

Answer: i got 78.54

rounded is 78.5

hope that helps

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3 years ago
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