Answer:
0.33
Step-by-step explanation:
We can think of this in tems of a venn diagram.
We have a rectangle, which represents the probabilities combined, which is 1.
Then we have two interlocking circles, the first representing the probability the yankees win, the second representing the probability the yankes score 5 or more runs, and the overlap representing the probability of both.
Therefore, the probability of losing and scoring less than 5 runs must be the area outside the circles but inside the rectangle.
The union of 'winning' and 'scoring 5 or more runs' is equal to the sum of the probability of either, minus the probability of both, which is 0.48+0.57-0.38 = 0.67.
Therefore the probability neither happen is 1-0.67 = 0.33
Answer:
a
The correct option is B
b
The correct option is D
Step-by-step explanation:
From the question we are told that
The level of significance is
The p-value is
Considering question b
Given that the then the null hypothesis is rejected
Considering question b
Given that the original claim is The standard deviation of pulse rates of a certain group of adult males is more than 11 bpm
Then the null hypothesis is
The reason why the null hypothesis is write like this above is because a null hypothesis expression can not contain only a > or a < but only allows =
and the alternative hypothesis is
Now given that the null hypothesis is rejected, it mean that there is sufficient evidence to support original claim
Try plotting the points on a graph, it might make it a bit easier to figure out an equation
Answer:
77.70 dollars or 77.7
Step-by-step explanation:
12.95 x 6 = 77.7 dollars
12.95 + 12.95 + 12.95 + 12.95 + 12.95 = 77.70
Hope this helps
Answer:
The probability is 0.28157
Step-by-step explanation:
The number of answers are 40 answers ( 10 questions and 4 answer each)
The number of correct answers is only 10
So the probability that he answers 2 exactly out of 10 means he correctly selected 2 answers
The probability will be;
10 C 2/ 40 C 10
This mean out of the total 10 correct, he selects 2 and out of the total 40 , he selects 10
The probability of selecting a correct answer is;
1/4 while the probability of selecting a wrong one is 3/4
So probability of selecting 2 correct out of a total 10 will be
10 C 2 (1/4)^2 (3/4)^8
= 0.28157