Mathematics, 30.11.2021 02:00 myleefaustin
Emi computes the mean and variance for the population data set 87, 46, 90, 78, and 89. She finds the mean is 78. Her steps for finding the variance are shown below. Sigma squared = StartFraction (87 minus 78) squared (46 minus 78) squared (90 minus 78) squared (78 minus 78) squared (89 minus 78) squared Over 5 EndFraction. = StartFraction 9 squared minus 32 squared 12 squared 0 squared 11 squared Over 5 EndFraction. = StartFraction 81 minus 1,024 144 0 121 Over 5 EndFraction. = StartFraction negative 678 Over 5 EndFraction. = negative 135. 6 What is the first error she made in computing the variance? Emi failed to find the difference of 89 - 78 correctly. Emi divided by N - 1 instead of N. Emi evaluated (46 - 78)2 as -(32)2. Emi forgot to take the square root of -135. 6.
Answers: 2
Mathematics, 21.06.2019 20:00
Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line
Answers: 1
Mathematics, 22.06.2019 01:50
Me asap the graph shows the relationship between the price of frozen yogurt and the number of ounces of frozen yogurt sold at different stores and restaurants according to the line of best fit about how many ounces of frozen yogurt can someone purchase for $5? 1 cost of frozen yogurt 1.5 2 13 15.5 cost (5) no 2 4 6 8 10 12 14 16 18 20 size (oz)
Answers: 1
Emi computes the mean and variance for the population data set 87, 46, 90, 78, and 89. She finds the...
Computers and Technology, 20.03.2020 03:03
English, 20.03.2020 03:03
English, 20.03.2020 03:03
Mathematics, 20.03.2020 03:03
History, 20.03.2020 03:03
German, 20.03.2020 03:03