Question

It is not immediately clear if this I However the coefficient of variation is given by s 6.0 10006 = 0006 and fro m this we judge that the variation in the data is relatively small. he weight of an object was measured thirty times and the following observations were obtained 2 6-120 6-129 6116 6114 6-112 6-119 6-119 6-121 6-124 6.127 6-113 6116 6.117 6-126 6 123 6-123 6-122 6118 6 120 6120 6-121 6-124 6-114 6-121 6120 6-116 6.113 6.111 6123 6.124 All measurements are to the nearest 0-001 observations. 2. Find the mean, variance and standard de g Plot a histogram of the deviation nf

Answer 1

Histogram of x 41ゆ 12 12 6.110 6.115 6.120 6.125 6.130

R Console > X 1 6.120 6.119 6.113 6.123 6.121 6.116 6.129 6.119 6.116 6.122 6.124 6.113 [13] 6.116 6.121 6.117 6.118 6.114 6.111 6.114 6.124 6.126 6.120 6.121 6.123 [25] 6.112 6.127 6.123 6.120 6.120 6.124 >hist (x) > mean-mean (x) > var=var (x) > std dev sd (x) > ### ANSWERS: > round (mean, 4) [11 6.1195 var [1] 2.136092e-05 > ## variance=0.00002 > round (std dev, 4') 1] 0.0046