SRIS test thru ch 3

In the 2014 season, after 9 games Turbo had gained 1938 yards on 186 carries. If he carried the ball 20 times in the next game, what was the minimum number of yards he needed to gain to have a season average of at least 10 yards per carry?

• 122

• 72

• 62

• 200

A type of graph that may be thought of as a rectangular version of a pie chart is . . .

• a 3-dimensional pie chart

• a segmented bar chart

• a categorical chart

• a rectangular version chart

To calculate the approximate p-value from a dotplot, count the dots for simulation results that are equal to or more extreme than the test statistic, and divide by

• the test statistic

• the mean of all the data values

• the total number of simulation results

• the significance level

If an athlete’s ABILITY to be successful is the same after a successful PERFORMANCE and after an unsuccessful

PERFORMANCE then their attempts are said to be

• uniform

• similar

• predictable

• independent

In a hypothesis test, if the p-value is really small, what are you likely to reject?

• the response variable

• the null hypothesis

• the significance level

• the alternative hypothesis

Mariah designed a spinner to simulate a softball player’s batting average. For the “OUT” sector she made the central angle equal to 270°. What was the player’s batting average?

• .090

• .270

• .250

• .750

Kaylen wants to use a regular deck of 52 playing cards to simulate 28 3-point shot attempts in a game by a basketball team that made 12 of them, including a streak of 7 in a row. Which assignment of card values described below will allow for a correct simulation?

• All the Hearts except the Ace will be made shots, all the Spades except the Ace, and the 2-8 of Clubs will be missed shots, and remove all the other cards from the deck.

• All the black cards will be made shots, all the red cards will be missed shots.

• All the picture cards (J, Q, K) are made shots, the 2-9 of Hearts and 2-9 of Diamonds are missed shots, and remove all the other cards from the deck.

• The Ace, 2, 3, 4, 5, 6, and 7 of Spades are the streak, the 9, 10, J, Q, and K of Spades are made shots not in the streak, and all the other cards are missed shots.

The Law of Large Numbers says that an athlete’s PERFORMANCE will generally get closer and closer to what as the number of attempts grows larger?

• infinity

• the athlete’s ABILITY

• RANDOM CHANCE

• a perfect game

To convert the decimal .218

to a fraction, the best first step would be to . .

• write: let 100x = 21.8

• write the fraction 218 / 100

• write: let x = .218

• write the fraction 218 / 1000

When a fraction with a whole number numerator and a whole number denominator (not 0) is converted to decimal format, there are only two possibilities. One is that the decimal will start to repeat. What is the other possibility?

• It will go on forever without any pattern (like p).

• It will convert to the reciprocal of the fraction.

• It will come to an end.

• It’s a trick question because a fraction cannot be converted to decimal format.