Please help 1 The newspaper reports that higher rates of sun

Please help!

1. The newspaper reports that higher rates of sunburn and ice cream consumption correspond. Does that mean that eating ice cream can put you at risk of sunburn? What might be the reason behind this phenomenon?

a. Kids are not waiting 40 minutes after eating to swim

b. In summer both ice cream consumption and rates of sunburn increase

c. Eating ice cream is viewed as a replacement for sunblock.

2. A normal or bell shaped distribution has its greatest probability density in the middle.

a. True

b. False

3. Which of the following is a qualitative variable?

a. Weight in pounds

b, Number of days of precipitation

c. Race

d. Average daily high temperature

4. A continuous variable is

a. One that can take on any value in a certain range

b. One that can only take on a finite number of values

Solution

1. The newspaper reports that higher rates of sunburn and ice cream consumption correspond. Does that mean that eating ice cream can put you at risk of sunburn? What might be the reason behind this phenomenon?

b. In summer both ice cream consumption and rates of sunburn increase [ANSWER]

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2. A normal or bell shaped distribution has its greatest probability density in the middle.

A normal distirbution is a bell shaped curve, with peak at the middle.

a. True [ANSWER]

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3. Which of the following is a qualitative variable?

A qualitative variable is a variable that cannot be described by numbers. Here, race is like \"American\", \"Canadian\", \"Chinese\", etc.

c. Race [ANSWER]

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4. A continuous variable is

a. One that can take on any value in a certain range [ANSWER]

Ex. Height is a continuous variable, because it can be 178.23 cm (continuous), but the number of games a team can win can never be 27.45 games (discrete).