0
There is no mode because no number appears more than once.
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∙ 11y ago
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What number is prime 79 75 81 or 87?
79
How do you put these numbers in least to greatest 81 73 88 85 81 72 79 75 76?
72 73 79 75 76 81 81 85 88
What is the mean mode and median to 82 79 93 91 95 95 81?
(79, 81, 82, 91, 93, 95, 95) The mean is 88 The mode is 95 The median is 91
What is the range of the following numbers 51 87 64 73 79 92 92 90 49 57 64 81 68 75 62 79 85 83 100 48?
The range is 52. Is this your homework?
What is the median 84 83 78 75 90 77 75 81 85 82 78 83 72 80 81 79 75 76 83 81 78 78?
83
What is the mean of the following data values 23 79 81 10 62?
The mean average is 51
What are the mean median and mode for 87 81 75 75 75 70 62 62 62 62 62 56 56?
For the set (87 81 75 75 75 70 62 62 62 62 62 56 56): The mean is 68.076923 repeating The median is 62 The mode is 62
What is the variance in this problem 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78?
The variance of 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78 = 16.8456
What is 79 plus 2?
81
What is the median of 72 89 67 81 75 79 81 80 62 64 83?
median is 79. Write in order; median is middle number: {72, 89, 67, 81, 75, 79, 81, 80, 62, 64, 83} → {62, 64, 67, 72, 75, 79, 80, 81, 81, 83, 89} To find middle number, count the number of data items, add 1 and divide by 2. If this is a whole number, that is the data item which is the median; if it is a fraction, take the mean average of the data items of the positions either side of the fraction (eg if the fraction is 3.5, take the mean average of the 3rd and 4th data items) There are 11 data items → median is (11+1)/2 = 6th data item → median is 79
Is the isotope 79-Br or 81-Br more common and why?
79-Br is more common because its abudance is 50.69%. 81-Br's abudance is 49.31% making it less common. Abudance is the rate at which the isotope is found in nature. In this case out of every 100 Bromine atoms you found 51 would be 79-Br and 41 would be 81-Br.
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
