Create a dot plot of the data shown below. 20, 21, 21, 25, 20, 23, 27, 23, 24, 25, 26, 24, 23, 22, 24 which measure of center would best describe a typical value of the data set? why?

Median; 23

Step-by-step explanation:

We have been given a data and we need to find the center of the given data for that we will find median of the data

For median we have two formulas

Case 1: when n is odd

Case 2: when n is even

n is the number of observations given

Here, we have 15 observations

Then we will use the formula for when n is odd

After substituting value of n=15 in we will get

That means

And our

Hence, 23 is the center that would best describe a typical value of data set given.

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

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