Stats Quiz Review

Which of these represents a random way to group people for an experiment? Select all that apply.

• flip a coin for each person

• sort alphabetically based on last name

• assign based on IQ

• let people randomly decide for themselves

Tags

CCSS.HSS.IC.B.3

What is the singular form of the word "dice"?

Tags

CCSS.L.2.1B

CCSS.L.3.1B

What is the key feature that makes an experiment, an experiment?

• dividing into two groups to change one variable

• asking questions directly to the participants

• observing responses without interaction

• getting data from more than 100 participants

Which of the following are characteristics of a normal distribution? Select all that apply.

• it's shaped like an upside-down V

• the standard deviation is at the center

• the area under the curve is 1

• 95% of the data is within 3 standard deviations

• if you have the median you can draw the normal curve and do all the calculations

Tags

CCSS.HSS.ID.A.4

Which element has the chemical symbol Fe on the periodic table?

Some plants have a mean height of 10 inches with a standard deviation of 2 inches. Approximately 68% of the plants should have a height between ___ ___ ___ inches.

• 8 and 12

• 6 and 14

• 4 and 16

• 9 and 11

• 0 and 10

Tags

CCSS.HSS.ID.A.4

Consider a normal curve with mean 100 and standard deviation 10. Determine the proportion of data that falls between 73 and 90. Use Desmos if necessary.

• 0.155

• 0.259

• 0.336

• 0.541

• 0.659

Tags

CCSS.HSS.ID.A.4

Find the standard deviation of {2,3,4,10,11,12,15,19}

• 5.68

• 2.49

• 3.19

• 7.22

• 19

Which US state comes first in an alphabetical list?

Tags

CCSS.RF.3.3B

CCSS.RF.3.3C

CCSS.RF.3.3D

CCSS.RF.4.3A

CCSS.RF.5.3A

How many serial numbers are possible if they contain 3 letters followed by 5 digits? The letters can NOT repeat but the digits can.