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4 years ago

What is the IQR (Inter Quartile Range) for the data set?

1 answer:

vladimir2022 [97]4 years ago

4 0

Arrange in ascending order:-

6 7 11 13 14 15 15 19 21

median = 14
lower quartile = mean of 7 and 11 = 9
upper quatile = mean of 15 and 19 = 17

Interquartile range = 17 - 9 = 8

answer is 8

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Find three consecutive even integers such that the sum of the first, twice the second, three times the third is -76. What is the

ss7ja [257]

Answer:

The numbers are -14,-13 and -12

Step-by-step explanation:

The correct question is

Find three consecutive integers such that the sum of the first, twice the second and three times the third is -76. What is the number?

Let

x ----> the first consecutive integer

x+1 ---> the second consecutive integer

x+2 ---> the third consecutive integer

we have that

$x+2(x+1)+3(x+2)=-76$

solve for x

apply distributive property

$x+2x+2+3x+6=-76$

Combine like terms

$6x+8=-76$

subtract 8 both sides

$6x=-76-8$

$6x=-84$

Divide by 6 both sides

$x=-14$

$x+1=-14+1=-13$

$x+2=-14+2=-12$

therefore

The numbers are -14,-13 and -12

3 0

3 years ago

What is the decimal equivalent of the fraction 2? 0 2.125 0 2.4 O 2.1 O 2.18

grandymaker [24]

Answer:

2 .1 because its closes to two

3 0

3 years ago

If Y / 4 - 12 = 3.5, what is the value of y?

qwelly [4]

Answer:

ok so the answer o Y is -8 bc 4-12 = -8 so really is -8

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

What is 16kg +2,800g

stira [4]

The answer is 18,800 g

16kg is the same as 16,000g Then add that to 2,800g

7 0

3 years ago

Which mixed number is greater than 6.78

Serga [27]

Lets test out all the answers

A. 2/3 is about .666 so A is not

B. 3/5 is .75 so B is B also not

C 7/9 is 0.7777 which is still less so C is not

D. 4/5 is about 0.80 and this is more than 0.78 so D is the answer

5 0

3 years ago