Show:
1-4
5-8
9-12
13-16
17-20
100

There was a girl that loved to watch track and she wanted to do long jump. She thought she wouldn’t be good enough, so she got the kids that we around her age and matched them up to her, going by inches that was how far off she was. But, she made one mistake in the dot plot can you spot it?

there is 8 numbers, the plot is symmetrical. 

1, 2, 3, 5.5, 5.5, 8, 9, 10.5

Dots are at 1, 2, 3, 5.5, 5.5, 8, 9, 10

10 needs to be at 10.5

100

There was a group of students that wanted to see how far they can throw and who has the farthest throw. The boys thought they would be able to throw the farther, so the boys and girls made a bet. Whoever threw the farthest the other gender had to pay for lunch. The boys threw 15, 17, 19, and 21. The girls threw 20, 5, and 22. Which number is the outlier?

5

100

True/False

You use the 68-95-99.7 rule  to find the percentages in normal distribution.

True

100

Find the Error

y=15x+b

5=15(2)+b

5=30+b

b=25

 B equals 6 not 25

100

True/False

  1. Convenience and voluntary response sample both are biased. 

  2. Convenience and voluntary response sample are the same thing.

  3.  Convenience sample chooses individuals from the population who are easy to reach results. 

  4. voluntary response sample consists of people who choose themselves by responding to a general invitation.

  1. True

  2. False

  3. True

  4. True

200

Histogram: True/False

  1. A histogram is the same as a bar graph.

  2. Histograms are resemble bar graphs.

  3. A histogram displays the distribution of a quantitative variable.

  1. False

  2. True

  3. True

200

A group of students wanted to figure out what the best color is to wear at any given time. 10 students said black, 5 students said blue, 8 students said white and 4 students said red. What percentage of students said black and white?

66.6

200

True/False

  1. There is a lot of purposes for standard normal distribution. The main purpose is to … Standard Normal distribution is the same thing as normal distribution. 

  2. You need the mean and standard deviation to be able to plot a standard Normal distribution. 

  3. The mean of a standard normal distribution is 1 and the standard deviation is 1. 


  1. True

  2. True

  3. False

200

True or False

You use the numbers 34, 13.5, 2.35 two times and 0.15 once

False

200

There was a bunch of people walking New York City, and there was a group wanting to find out what everyone's favorite color is. If this is a simple random sample would the group ask the first 30 people they see or would they select people randomly?

select people randomly

300

There was a student that wanted extra credit, she asked her teacher what she can do to get extra credit. The teacher told her she needed to go and collect data from her 20 classmates. She needed to find out everyone’s favorite color. Pink, green, and purple have 2; blue and red have 4; and black has 6. What percentage of class has a favorite color of blue and black

50%

300

Skewed left and skewed right are very similar in many different ways so everyone thinks that they are the same. There is a big difference between the two. The differences isn’t the curve being different. What is the difference between skewed left and skewed right?

  1. One is negative and one is positive

  2. They are the same

  3. Mean, median, and mode aren’t equal. 

  4. Asymmetrical balance 

1
300

True/False

  1. You need sets a numbers to graph. 

  2. A scatter plot is the same thing as a line graph. 

  3. You use the line of best fit. 

  1. True

  2. False

  3. True

300

There’s a mean at 10 and a standard deviation of 11. X equals 43. What is the observations to the left of 43?

43-10/11 = 3   x = 

 0.9987

300

The cluster     classifies the population into groups of individuals that are located near each other.

sample

400

Box plots are pretty easy but there’s always one person to mess it up. Everyone thinks they can do them and not look back at it. What number is an outlier? 0, 10, 11, 12 ,13, 14, 16, 18, 19


0

400

The stem and leaf below is numbers that students spend studying. How many students study 1 to 3 hours? Explain the reasoning.

 6.  if you got to the stem 0, count all of the ones, twos, and threes.

400

Fill-in-Blanks

  1.          is a strong negative correlation.

  2.           Is a strong positive correlation

  3.           no linear relationship

  1. -1

  2. 1

  3. 0

400

True/False

You need the population to find the census and you use the census to find a sample.

True

400

Undercoverage and nonresponse is similar because some individuals… 

  1. Don’t want to do it.

  2. Don't want to do it and /or don't get picked. 

  3. Are out of state. 

2