A civil engineer measures the distance of points A and B and the following values were recorded in a series of measurements. Trials Measurement 120.68 I 120.84 3. 120.76 4 120.64

The term perception and reaction time (PRT) describes the period between the occurrence and the initiation of the physical reaction. True False

QUESTION 4 Two sides of a rectangle are measured and found to be 219.42 ft ± 0.03 ft and 466.05 ft ± 0.08 ft. Determine the probable error of the figure to two decimal places.

A sample of 100 adult women was taken, and each was asked how many children she had. The results were as follows: Children 0 1 2 3 4 5 Number of Women 25 20 28 15 8 4 What is the sample mean and standard deviation in that order?   Select one: a. 1.74 and1.41 b. 1.73 and1.40 c. 1.73 and1.41 d. 1.41 and1.73 e. 1.40 and 1.73