Consider the following observations on shear strength of a joint bonded in a particular manner: 30.0 4.4 33.1 66.7 81.5 22.2 40.4 16.4 73.7 36.6 109.9 a. Determine the value of the sample mean.
b. Determine the value of the sample median.
c. Why is it so different from the mean?
d. Determine the Lower Quartile (LQ).
e. Determine the Upper Quartile (UQ).
f. Calculate a trimmed mean by deleting the smallest and largest observations. What is the corresponding trimming percentage?

If the value of cos330°is√3/2 then find cos 165°.

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.

The approximate line of best fit for the given data points, y = −2x − 2, is shown on the graph.which is the residual value when x = –2? a)–2 b)–1 c)1 d)2