Answer:
a) 0.226
b) 0.613
c) Part(a)
d) Unusual event
Step-by-step explanation:
We are given the following in the question:
x: 0 1 2 3 4 5 6 7 8
P(x): 0.000 0.003 0.016 0.054 0.121 0.193 0.226 0.193 0.121
x: 9 10 11 12
P(x): 0.054 0.016 0.003 0.000
a) Probability of exactly 6 Mexican-Americans among 12 jurors.
Thus, 0.226 is the probability of exactly 6 Mexican-Americans among 12 jurors
b) Probability of 6 or fewer Mexican-Americans among 12 jurors
Thus, 0.613 is the probability that 6 or fewer Mexican-Americans among 12 jurors.
c) The result from part (a), because it measures the probability of exactly 6
successes.
d) Unusual event
An event is said to be unusual if the probability of event is less than 0.5.
Since
Thus, it is an unusual event as the probability is less than 0.5
Answer:
weeks.
Step-by-step explanation:
We have been given that a km stretch of road needs repairs. Workers can repair kilometer of road per week.
To find the number of weeks it will take to repair the stretch we will divide by
Upon converting our mixed fractions into improper fractions we will get,
Dividing a fraction with another fraction is same as multiplying the 1st fraction with the reciprocal of second fraction.
Therefore, it will take weeks to repair the stretch of the road.
<span> x = -3 x = 9<span> x = -9 that is it 3 ways to answer</span></span>
<span>1.333333333333333.... = 4/3.
To find this:
x = 1.3333333333333...
Multiply by 10:
10x = 13.3333333333...
Subtract x = 1.3333333333333333....:
9x = 12.
Divide by 9:
x = 12/9 = 4/3.</span>