Question
In: Advanced Math
Speeding on the I-5. Suppose the distribution of passenger vehicle speeds traveling on the Interstate 5...
Speeding on the I-5. Suppose the distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is nearly normal with a mean of 73.8 miles/hour and a standard deviation of 4.96 miles/hour. Round all answers to four decimal places.
What proportion of passenger vehicles travel slower than 64 miles/hour?
What proportion of passenger vehicles travel between 63 and 70 miles/hour?
How fast do the fastest 10% of passenger vehicles travel?
Suppose the speed limit on this stretch of the I-5 is 75 miles/hour. Approximately what proportion of the passenger vehicles travel above the speed limit on this stretch of the I-5?
Solutions
Colby Messinger answered 2 years agoRelated Solutions
Speeding on the I-5. Suppose the distribution of passenger vehicle speeds traveling on the Interstate 5...
Speeding on the I-5. Suppose the distribution
of passenger vehicle speeds traveling on the Interstate 5 Freeway
(I-5) in California is nearly normal with a mean of 70.4 miles/hour
and a standard deviation of 4.5 miles/hour. Round all answers to
four decimal places.
1. What proportion of passenger vehicles travel slower than 80
miles/hour?
2. What proportion of passenger vehicles travel between 73 and
79 miles/hour?
3. How fast do the fastest 8% of passenger vehicles
travel? miles/hour
4. Suppose the...
Speeding on the I-5. Suppose the distribution of passenger vehicle speeds traveling on the Interstate 5...
Speeding on the I-5. Suppose the distribution of passenger
vehicle speeds traveling on the Interstate 5 Freeway (I-5) in
California is nearly normal with a mean of 73 miles/hour and a
standard deviation of 4.65 miles/hour. Round all answers to four
decimal places. What proportion of passenger vehicles travel slower
than 72 miles/hour? What proportion of passenger vehicles travel
between 66 and 73 miles/hour? How fast do the fastest 6% of
passenger vehicles travel? miles/hour Suppose the speed limit on...
The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is...
The distribution of passenger vehicle speeds traveling on the
Interstate 5 Freeway (I-5) in California is nearly normal with a
mean of 75 miles/hour and a standard deviation of 6.1
miles/hour.
(a) What proportion of passenger vehicles travel slower than 77
miles/hour?
(b) What proportion of passenger vehicles travel between 65 and
81 miles/hour?
(c) How fast do the fastest 15% of passenger vehicles travel?
miles/hour
(d) Find a value k so that 50% of passanger vehicles travel at
speeds...
The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is...
The distribution of passenger vehicle speeds traveling on the
Interstate 5 Freeway (I-5) in California is nearly normal with a
mean of 74.9 miles/hour and a standard deviation of 6.5
miles/hour.
(a) What proportion of passenger vehicles travel slower than 78
miles/hour?
(b) What proportion of passenger vehicles travel between 57 and 83
miles/hour?
(c) How fast do the fastest 10% of passenger vehicles travel?
miles/hour
(d) Find a value k so that 45% of passanger vehicles
travel at speeds...
1.) Bringing all of section 6.2 together... The distribution of passenger vehicle speeds traveling on the...
1.)
Bringing all of section 6.2 together...
The distribution of passenger vehicle speeds traveling on the
Interstate 5 Freeway (I-5) in California is nearly normal with a
mean of 72.6 miles/hour and a standard deviation of 4.78
miles/hour.
(a) What percent of passenger vehicles travel slower than 80
miles/hour?
% (round to two decimal places)
(b) What percent of passenger vehicles travel between 60 and 80
miles/hour?
% (round to two decimal places)
(c) How fast do the fastest 5%...
The speeds of car traveling on Interstate Highway I-35 are normally distributed with a mean of...
The speeds of car traveling on Interstate Highway I-35
are normally distributed with a mean of 74
miles per hour and a standard deviation of 6 miles per hour.
(a) Find the percentage of the cars traveling on this highway with
a speed
i. of more than 85,
ii. between 65 to 72.
(b) If a BMW is at the speed that is faster than 90 percentage of
cars, what is the speed of the
BMW?
Suppose the average speeds of passenger trains traveling from Newark, New Jersey, to Philadelphia, Pennsylvania, are...
Suppose the average speeds of passenger trains traveling from
Newark, New Jersey, to Philadelphia, Pennsylvania, are normally
distributed, with a mean average speed of 88 miles per hour and a
standard deviation of 6.4 miles per hour.
(a) What is the probability that a train will average less than
72 miles per hour?
(b) What is the probability that a train will average more than
80 miles per hour?
(c) What is the probability that a train will average between...
Suppose the average speeds of passenger trains traveling from Newark, New Jersey, to Philadelphia, Pennsylvania, are...
Suppose the average speeds of passenger trains traveling from
Newark, New Jersey, to Philadelphia, Pennsylvania, are normally
distributed, with a mean average speed of 87 miles per hour and a
standard deviation of 6.4 miles per hour. (a) What is the
probability that a train will average less than 73 miles per hour?
(b) What is the probability that a train will average more than 80
miles per hour? (c) What is the probability that a train will
average between...
A traffic study conducted on an interstate highway shows that vehicle speeds (in mph) are normally...
A traffic study conducted on an interstate highway shows that
vehicle speeds (in mph) are normally distributed with a mean of
61.3 and a standard deviation of 3.3.
a) Sketch the distribution of vehicle speeds. Show 3 steps of
standard deviation above and below the mean. b) If a vehicle is
randomly checked, what is the probability that its speed is greater
than 70? Include a sketch. c) If 5 vehicles are randomly sampled,
what is the probability that their...
The following is the frequency distribution for the speeds of a sample of automobiles traveling on...
The following is the frequency distribution for the speeds of a
sample of automobiles traveling on an interstate highway.
Speed (MPH)
Frequency
50 - 54
2
55 - 59
4
60 - 64
5
65 - 69
10
70 - 74
9
75 - 79
5
35
Find the median and the mode.
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