LT: 9-5: Predictions
LT: 9-1: Measure of Central Tendency
LT 9-4: Geometric Probability
LT: 9-2: Inserting Data
Unit Nine Vocabulary
100
A manufacturer inspects 250 i-pods and finds 197 of them have no defects. The manufacturer sent a shipment of 1,000 i-pods to a distributor. Predict the number of i-pods in the shipment that will have no defects.
What is 788 ipods?
100
Use the Weights of Dogs stem and leaf plot to find the mean of the data set.112,112,116,133,145
What is 123.6?
100
The circle formula used when determining geometric probability.
What is the area formula of A = pi(r)(r)
100
Kyle purchased four video games from Game Stop. The average price of the video games was $45. When he bought a fifth game at Best Buy, his average went up to $48. How much was the game at Best Buy?
What is $60?
100
The sum of the numbers divided by the number of addends.
What is mean?
200
Dale conducted a survey of the students in his classes to observe the distribution of eye color. In a sample survey of eighty students, twelve students have blue eyes. If the distribution of eye color in Dale’s grade is similar to the distribution in his classes, about how many of the 360 students in his grade would be expected to have blue eyes?
What is 54 students?
200
Use the Weights of Dogs stem and leaf plot to find the median of the data set.112,116,133,145,112
What is 116?
200
The area of the circular region. d= 28
What is 615.44 square inches?
200
Amanda spent $125 total in the first 5 stores at the mall. If she spent $23 in the sixth store did the mean go up, go down, or stay the same?
What is down?
200
The middle number of the data set.
What is median?
300
A spinner is divided into 8 equal sections and four are green, Ben spins the spinner 20 times. It lands on green 9 times. How many more times does Ben need to spin the spinner and have it land on green for the relative frequency to equal the theoretical probability?
What is two more spins?
300
Use the Weights of Dogs stem and leaf plot to find the mode of the data set. 112,112,116,133,145
What is 112?
300
The area of the entire target. d= 32
What is 803.84 square inches?
300
Given the following test scores, a student wants to earn the highest grade possible. The teacher has told the students they can select what they want for their final grade. Which one, mean or median, would give the student the best possible score? Test scores were: 88, 93, 80, 91
What is median?
300
The number or numbers that occur the most in a data set.
What is mode?
400
A quality inspector examines a sample of 25 strings of lights and finds that 6 strings of lights are defective. What is the best prediction of the number of defective strings in a delivery of 1000 strings of lights?
What is 240 strings of lights.
400
Use the Weights of Dogs stem and leaf plot to find the range of the data set. 112,116,133,145,112
What is 33?
400
Record your answer as a percent. P(unshaded) = shaded =21.5%
What is 78.5%?
400
If four friends had an average score of 92 on a test, what was Doug's score if Bill got an 86, Annie got a 98, and Demetrius got a 90?
What is 94?
400
The difference between the greatest and the least number in a data set.
What is range?
500
Before a school election, a sample of votes gave Taylor 28 votes, Steven 41, and Maria 11. Based on these results, predict the number of votes for Steven if 1600 students vote.
What is 820 students.
500
On a stem and leaf plot key. 0|3 is the the same as ___
What is 3?
500
Record your answer as a percent. P(shaded) = unshaded 14.2%
What is 85.8%?
500
Anthony is working very hard to get his best grades ever. He has taken 7 spelling tests and the result are shown below: What possible scores could he earn on the final spelling test to earn an 80% average? Scores: 90, 88, 85, 95, 85, 70, 100
What 27?
500
Another term for mean.
What is average?
M
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