Statistics and Probability Practice Questions by maam Rhodora

You take out a ₱20,000 loan at a 5% interest rate. If the interest is compounded annually, how much will you owe after 10 years?

• ₱32,577.89

• ₱31,577.89

• ₱30,577.89

• ₱29,577.89

Tags

CCSS.HSF-LE.A.1C

In a certain barangay, Gina wants to estimate the mean weight μ, in kilograms, of all seven-year old children to be included in a feeding program. She wants to be 99% confident that the estimate of μ is accurate to within 0.06 kg. Suppose from a previous study, the standard deviation of the weights of the target population was 0.5 kg, what should be the sample size?

• 456

• 461

• 482

• 496

Tags

CCSS.HSS.IC.B.4

• -6

• -7.5

• -8

• -9

Tags

CCSS.HSS.ID.A.4

Mr. Tan asserts that fewer than 5% of the bulbs that he sells are defective. Suppose 300 bulbs are randomly selected, each is tested and 10 defective bulbs are found. Does this provide sufficient evidence for Mr. Tan to conclude that the fraction of defective bulb is less than 0.05? (Use α=0.01 and the p-value approach.) What is the value of p ̂?

• 0.35

• 0.34

• 0.035

• 0.034

Tags

CCSS.HSS.IC.B.4

Suppose you have seats to a concert featuring your favourite musical artist. Calculate the approximate decibel level associated if a typical concert’s sound intensity is 10^-12 W/m².

• 90dB

• 100dB

• 110dB

• 115dB

You roll a single die numbered from 1 to 6. What is the probability of rolling an odd number, expressed as a fraction?

• 1/4

• 1/2

• 3/4

• 1

Tags

CCSS.7.SP.C.7B

The numbers 4 through 14 are placed in a bowl and drawn at random then replaced after being drawn. Is it likely or unlikely you will draw a number less than 7?

• Likely

• Unlikely

• Neither

• can not determine

Tags

CCSS.7.SP.C.5

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?

• 1:8

• 2:9

• 3:5

• 4:7

There is a jar of jelly beans with the following flavors: 12 are grape, 17 are blueberry, 5 are pineapple and 13 are coconut. What is the probability, expressed as a percent, of selecting either a grape or blueberry replacing it and then a coconut or pineapple?

• 22%

• 24%

• 26%

• 28%

In a deck of 52 playing cards what is the probability, as a fraction, of drawing a picture card (A,K,Q,J) replacing it and then drawing either a heart or a diamond?

• 1/11

• 2/13

• 3/17

• 5/18

Tags

CCSS.HSS.CP.B.7