Create the appropriate frequency distribution graph by
hand.
Below are the speeds of cars clocked by...
Create the appropriate frequency distribution graph by
hand.
Below are the speeds of cars clocked by radar on a 35-mph zone of a
road on a particular afternoon.
99, 96, 94, 91, 90, 90, 89, 87, 85, 84, 82,
80, 79, 78, 77, 76, 34, 75, 75, 74, 74, 72,
70, 69, 68, 68, 68, 66, 66, 65, 63, 63, 60,
59, 58, 58, 54, 50, 48, 46, 42, 38, 33, 12
There is concern about the speed of automobiles traveling over
US 131. For a random sample...
There is concern about the speed of automobiles traveling over
US 131. For a random sample of seven automobiles radar indicated
the following speeds, in miles per hour:80, 74, 69, 78, 87, 72, and
70. Assuming a normal population distribution, find the margin of
error of a 95% confidence interval for the mean speed of all
automobiles traveling over this stretch of highway.
( mean= 75.7143, S=6.3957)
7. using the following, construct a complete frequency
distribution include the mean, variance, standard deviation. Also...
7. using the following, construct a complete frequency
distribution include the mean, variance, standard deviation. Also
graph the frequency histogram, polygon and ogive. indicate modal
class, median class and describe the distribution.
class limits frequency
28-34 4
35-41 12
42-48 20
49-55 10
56-62 4
9. find the weighted mean for three exams if the first one was
worth 25% and the student received a 92, the second was worth 40%
and the student received a 86 and the third...