How to do you do this

Mathematics

2 answers:

gladu [14]3 years ago

8 0

That is exactly how you do it

puteri [66]3 years ago

5 0

Answer:

Step-by-step explanation:

The median is the middle value of a set of data, and the mode is the value that appears most often.

For example:

1. The values given are: 6, 9, 2, 4, 3, 6, 5

To find the median, we have to list the numbers in order from smallest to largest.

2, 3, 4, 5, 6, 6, 9

Then, cross out a number on the left and on the right. Repeat this process until only one or two numbers are not crossed out.

In this case, all of the numbers except for 5 are crossed out.

This means that 5 is the median.

To find the mode, all we have to do is see which number appears the most. In this set of number, the number 6 appears twice, more than any other number.

So, the mode is 6.

You can do the same thing for the other problems.

To find the mean of a set of values, you have to add all of the numbers together and divide them by the total amount of numbers in the set.

For example:

7. There are 8 numbers in this set. These numbers are:

21, 23, 27, 28, 32, 32, 34, 43

First, we have to add all of the numbers together.

21 + 23 + 27 + 28 + 32 + 32 + 34 +43 = 240

Now, we have to divide 240 by 8(the total amount of numbers in the set)

240/8 = 30

The mean is 30.

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Which of the following would best represent a cosine function with an amplitude of 3, a period of pi/2 , and a midline at y = –4

Grace [21]

To transform the function $f(x)= cos(x)$ to have the amplitude of 3, we need to multiply the constant 3 to the function f(x), so we have $y=3f(x)$

To transform the function $f(x)=cos(x)$ to have the midline $y=-4$ we need to subtract $f(x)$ by 4, so we have $y=f(x)-4$ ,

To transform the function $f(x)=cos(x)$ to have period of $\frac{ \pi }{2}$ , we need to divide the original period $2 \pi$ by 4, so we have $y=f(4x)$ . Note that it is the $4x$ gives the effect of dividing the points on x-axes by 4 and the period is read on x-axes

Hence, the full transformation is given $y=3f(4x)-4$ which is the last option