What is the interquartile range of this set of data? 15, 19, 20, 25, 31, 38, 41.

Mathematics

1 answer:

Korvikt [17]3 years ago

7 0

The answer is D, 26.

You might be interested in

Can someone help me pls? Thankss:)

zloy xaker [14]

Answer: C

Step-by-step explanation:

8 0

3 years ago

On two tests so far this year, a student received a 78 and a 93. The student wants an average between 80 and 90 inclusive. What

Mariulka [41]

240 <= 171 + x <= 270
and now subtract 171 from all and get
69 <= x <= 99
So any score from 69 to 99 will do.

8 0

3 years ago

2, 6, 10, 14, ...

8090 [49]

The sequence can be represented by $2 + 4x$ , where $x$ is a whole number( $x \geq 0$ and $x$ is an integer). By this, we should be able to plug in some whole number x and be able to get these values if they are in the sequence. To test this, let's set these numbers equal to $2 + 4x$ and confirm that there is a whole number x which equals the values selected.

$2 + 4x = 90 \Rightarrow 4x = 88 \Rightarrow x = 22 \, \checkmark$

$2 + 4x = 150 \Rightarrow 4x = 148 \Rightarrow x = 37 \, \checkmark$

$2 + 4x = 160 \Rightarrow 4x = 158 \Rightarrow x = 39.5$

When trying 160 with our equation, we find that x doesn't equal a whole number, thus our answer is C, or 160. To confirm our answer, we can test 170 and 210 and confirm that they both give us a value for x which is a whole number.

$2 + 4x = 170 \Rightarrow 4x = 168 \Rightarrow x = 42 \, \checkmark$