AFDA_W14/W15_Normal Distribution Review

At Nicola and Ana's donut shop the number of donuts in a bag can vary. Help Donald find the mode.
12,10,10,10,13,12,11,13,10

• 13
• 12
• 11
• 10

Paisley is a dentist. She needs to report on the average number of cavities that her patients have.
1,0,1,5,6,3,4

• 3.33
• 2.85
• 3
• 3.5

Nicole bowled 7 games last weekend. Her scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Nicole's scores?

• 193
• 127
• 60
• 66

Find the median of these numbers:
4,2,7,4,3

• 2
• 5
• 7
• 4

The center of the curve represents what value of a data set?

• μ = population mean

• δ = population standard deviation

• Σ= sum of the data values

• Ζ = z or standard scores

The ages of the population of people living in Meru area in Ipoh are Normally distributed with mean 43 and standard deviation 14

The town has a population of 5,000.

How many would you expect to be aged between 22 and 57?

You can use this Standard Normal Distribution curve:

• 1750

• 3860

• 3870

• 4330

What is Standard Deviation?

• A measure of central tendency

• A measurement of how much data varies

• A measurement of how much data varies from the average

What's the standard deviation?

• 150

• 60

• 240

• 30

What goes in the yellow box?

• mean

• median

• mode

• standard deviation

The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.

About what percent of the products last between 12 and 15 days?

• 68%
• 34%
• 16%
• 2.5%