Statistical Inferences Quiz

Choose all shapes that apply to the distribution shown.

• Bell-Shaped

• Uniform

• Skewed Left

• Symmetric

• Skewed Right

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.1

Choose all shapes that apply to the distribution shown.

• Bell-Shaped

• Bimodal

• Skewed Right

• Uniform

• Skewed Left

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.1

Choose all shapes that apply to the distribution shown.

• Uniform

• Skewed Right

• Symmetric

• Bimodal

• Skewed Left

Tags

CCSS.HSS.ID.A.3

Which two distributions have the same mean?

• 
• 
• 
• 

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.2

Which two distributions have the same standard deviation?

• 
• 
• 
• 

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.2

Which distribution has a greater mean?

• 
• 

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.2

Which distribution has a smaller standard deviation?

• 
• 

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.2

A pizza company is interested in the average number of pizzas eaten each year by people. They send out 30 volunteers to conduct research by collecting random samples of 25 people each and determine the number of pizzas that the people in the group ate in the previous year. After looking at the sample means, the company sees that the distribution is approximately normal, with a mean of 6.4 pizzas eaten and a standard deviation of 0.6 pizzas. Label the normal curve to show 3 standard deviations from the mean.

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4

CCSS.HSS.IC.B.4

CCSS.HSS.ID.A.2

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.MD.A.1

CCSS.HSS.MD.A.2

CCSS.HSS.MD.A.3

Based the normal curve on the previous slide, estimate the proportion of people who ate less than 6.4 pizzas last year.

Tags

CCSS.HSS.ID.A.4

Based the normal curve on the previous slide, estimate the proportion of people who ate between 5.8 and 7 pizzas last year.

Tags

CCSS.HSS.ID.A.4