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Q: What is the mean of 70 70 81 85 and 74?
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What are the composite numbers between 70 and 85?

70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85 (including 70 and 85)


The test scores of 10 students were 74 81 39 74 85 80 100 92 74 and 85 what was the mode?

The mode is the number that appears the most often. In this case it is 57.


What are the composite numbers between 70 and 90?

The composite numbers are: 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86 ,87, 88


How many composite numbers are there between 70-90?

160


What are the composite numbers between 60 and 90?

62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88.60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90


Is 7 a factor of 81?

Since 81 is not divisible by 7 therefore, 7 is not a factor of 81.


What is the mean median and mode for the following numbers 87 75 89 81 90 73 85 96 65 92 78 79 83 85 79 90 86 72 74 88 81 85?

meanAdd up the numbers and divide by how many there are: 87+75+89+81+90+73+85+96+65+92+78+79+83+85+79+90+86+72+74+88+81+85 = 1813There are 22 numbers.⇒ mean = 1813 ÷ 22= 829/22≈ 82.41medianSort the numbers into order; the median is the middle number (if an odd number of numbers) or the mean of the middle two (if an even number of numbers): Sorted: 65, 72, 73, 74, 75, 78, 79, 79, 81, 81, 83, 85, 85, 85, 86, 87, 88, 89, 90, 90, 92, 96There are 22, so the median is the mean of the middle two which are the 11th (83) and 12th (85) numbers:⇒ median = (83+85) ÷2= 84modeThe number which appears the most often. Having sorted the list for the median, it can be seen that the one with the highest frequency appears three times: ⇒ mode = 85


What is a perfect square between the numbers 70-85?

155


What is the mean of 60 85 and 98?

81.


What is a composite number greater than 70?

For instance, all the even numbers greater than 70 are composite.The next few composite numbers greater than 70 are: 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, ...


Give the set of composite numbers from 70 to 100?

70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100


What are the composite numbers between 61 to 89?

They are: 62 63 64 65 66 68 69 70 72 74 75 76 77 78 80 81 82 84 85 86 87 88.