Note the graph of an athletes performance after finishing a triathlon. The x-axis measures time in hours, and the y axis measure
s distance in kilometers. First she swam, then biked, and then she finished the race with a run. The data states she ran four times as fast as she swam and she biked twice as fast and she ran. Based on the graph, chose the statement below that is false.
A) the steeper the segment, the faster the athlete is traveling along the course
B) the athlete finished the course in under eight hours
C) the athlete spent equal amounts of time biking and running
D) the athlete spent twice as much time biking compared to swimming
A) the steeper the segment, the faster the athlete is traveling along the course
B) the athlete finished the course in under eight hours
C) the athlete spent equal amounts of time biking and running
D) the athlete spent twice as much time biking compared to swimming
1 answer:
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Answer and explanation:
Given : A driving exam consists of 29 multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probability that a student makes fewer than 6 mistakes on the exam is 0.26 and that the probability that a student makes from 6 to 20 (inclusive) mistakes is 0.53.
Let X be the number of mistake
To find : The probability of each of the following outcomes.
a) A student makes more than 20 mistakes
i.e.
b. A student makes 6 or more mistakes
i.e.
c. A student makes at most 20 mistakes
i.e.
Using 'a' part
d. Which two of these three events are complementary?
The complement of an event happening is the exact opposite: the probability of it not happening.
According to definition,
Option a and c are complementary events.