Date:
1
what are the mean, variance, and standard deviation of these values?
3.5, 4.7, 6.4, 5.8, 4.2
mean = 4.7; variance: 1.158;
standard deviation - 1.08
mean = 4.92; variance: 0.944;
standard deviation - 0.9716
mean = 4.92; variance: 1.1096;
standard deviation - 1.05
mean = 4.7; variance: 1.1096;
standard deviation - 1.05

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

What is fraction that is equivalent to 3/8