Question

Swimmers at the City Pool Monday Tuesday Wednesday Thursday Friday Number 63 40 40 47 68 Step 2 of 4: Calculate the expected value for the number of swimmers on Thursday. Enter your answer as a fraction or a decimal rounded to three decimal places.

Answer 1

The expected value for the number of swimmers on Thursday can be calculated by taking the average of the number of swimmers on each day. To do this, add up the number of swimmers on each day and divide by the total number of days.

Step-by-step explanation:

The expected value for the number of swimmers on Thursday can be calculated by taking the average of the number of swimmers on each day. To do this, add up the number of swimmers on each day and divide by the total number of days:

Step 1:

Add up the number of swimmers on each day:

• Monday: 63
• Tuesday: 40
• Wednesday: 40
• Thursday: 47
• Friday: 68

Total: 63 + 40 + 40 + 47 + 68 = 258

Step 2:

Divide the total number of swimmers by the total number of days:

Expected value = 258 / 5 = 51.6

Therefore, the expected value for the number of swimmers on Thursday is approximately 51.6.

Answer 2

The expected value for the number of swimmers on Thursday is 52

Using the parameters given for our Calculation;

• Number of data values = 5
• Sum of data values = 63 + 40 + 40 + 47 + 68 = 258

The expected value can be obtained using the mean formula ;

• Expected value = Sum of values / Frequency

Now we have;

• 258 / 5 = 51.6 ≈ 52 (nearest whole number)

The expected number of swimmers on Thursday is