20
24. It is the difference between 97 and 73, the highest and lowest numbers in the set.
86.90909090 recurring or 86 and one eleventh.
the median is 86. What you do is put the numbers in order from least to greatest and cross one off from each side till you get to the middle number. 80 85 86 90 94
To find 85 percent of 90, you first convert 85 percent to a decimal by dividing by 100, which gives you 0.85. Then, you multiply 0.85 by 90 to get the answer. Therefore, 85 percent of 90 is 76.5.
20
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
It is 88, the number halfway between the two middle numbers.
24. It is the difference between 97 and 73, the highest and lowest numbers in the set.
86.90909090 recurring or 86 and one eleventh.
80
The median is 86.
the median is 86. What you do is put the numbers in order from least to greatest and cross one off from each side till you get to the middle number. 80 85 86 90 94
1977-85 Impala, 1977-90 Caprice
80, 81, 82, 84, 85, 86, 87, 88, 90
80, 81, 82, 84, 85, 86, 87, 88, 90
8