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An engineer was assigned the task of calculating the average time spent by vehicles waiting at traffic signals. The signal timing (in seconds) would then be modified to reduce the pressure of traffic. The observations of average waiting time during the month of January are:
\[\begin{array}{llllll}58 & 63 & 58 & 12 & 24 & 47 \\ 46 & 29 & 42 & 68 & 33 & \\ 43 & 37 & 39 & 52 & 35 & \\ 44 & 35 & 49 & 36 & 64 & \\ 53 & 28 & 55 & 27 & 53 & \\ 55 & 64 & 37 & 31 & 61 & \end{array}\]
(a) Obtain the quartiles.
(b) Obtain the 80th percentile.
(c) Construct a histogram.
in Data Science & Statistics by Diamond (38,951 points) | 12 views
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Arrange the data in ascending order. 2 Calculate the mean (average) time teenagers spent watching television. Round your answer off to the nearest hour. Consider the below to be the monthly income of 10 drivers. Find the following: • Average income • Median of the incomes • Mode of the incomes • The standard deviation • The quartile deviation
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