Mean, Median and Mode

What is the definition of the mean?

• Add all the numbers together and divide by the number in the set.

• The middle number after the numbers have been put in order from least to greatest.

• The difference between the highest and lowest numbers

• The number that occurs the most often.

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What is the definition of median?

• Add the numbers together and then divide by the number in the set.

• The difference between the largest and smallest number.

• The number in the middle when the numbers are in order from least to greatest.

• The number that appears most often.

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CCSS.7.EE.B.3

What is the definition of mode?

• The average

• The number that appears most often.

• The largest number - the smallest number

• The number in the middle.

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What is the first thing you should do before finding the median or the mode?

• Start crossing numbers off
• Put numbers in order from least to greatest
• List the numbers how they are
• Look for repeats

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When finding the median, what do you do if there are two middle numbers?

• Add them together and divide by 2
• Write them both as the answer
• Give up
• Pick one

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At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.

12,10,10,10,13,12,11,13,10

• 10

• 11

• 12

• 13

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The height of three basketball players is 210 cm, 220 cm and 191 cm.

What is their average (MEAN) height?

• 210

• 207

• 220

• 200

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CCSS.7.EE.B.3

Anna read 20 pages on Monday, 30 pages on Tuesday, and 32 pages of her book on Wednesday. Which answer choice is closest to the MEAN number of pages that she read over the 3 days?

• 20 pages

• 27 pages

• 30 pages

• 32 pages

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CCSS.6.SP.B.5

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Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the MEDIAN of Roger's scores?

• 172

• 127

• 193

• 155

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CCSS.6.SP.B.5

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For the data set below, which of the following measures is the greatest?

(20, 25, 30, 31, 32, 45, 45, 80)

Mean = _________, Median = _________ Mode = __________

• Mean

• Median

• Mode

• None of the above

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