Question

select all the following that show a negative correlation.

• amount of hair on a person’s head and iq
• cardio exercise and weight
• insulation in your house and your heating bill:
• taking less a.p. classes and stress:

Explanation:

Step1: Analyze each option

• Amount of hair on a person’s head and IQ: There's no correlation between hair amount and IQ, so this is not a negative correlation.
• Cardio exercise and weight: As cardio exercise increases, weight typically decreases (if diet is controlled), so this is a negative correlation.
• Insulation in your house and your heating bill: More insulation means less heat loss, so heating bill decreases as insulation increases, negative correlation.
• Taking less A.P. classes and stress: Fewer A.P. classes usually mean less academic stress, so stress decreases as A.P. classes taken decrease, negative correlation.

Step2: Identify correct options

From the analysis, the options with negative correlation are Cardio exercise and weight, Insulation in your house and your heating bill, Taking less A.P. classes and stress.

Answer:

• Cardio exercise and weight
• Insulation in your house and your heating bill
• Taking less A.P. classes and stress