Answer:
8/52
Step-by-step explanation:
There are 4 Jacks and 4 Queens in a deck of 52 cards, bumping the odds up to 8/52.
XY - X + 2Y -2 =X(Y-1) + 2(Y-1) = 2X(Y-1)
The answers are (-3,-12), (-2,-10), (5,4)
Answer: = ( 63.9, 66.7)
Therefore at 90% confidence interval (a,b)= ( 63.9, 66.7)
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
x+/-zr/√n
Given that;
Mean x = 65.3
Standard deviation r = 5.2
Number of samples n = 36
Confidence interval = 90%
z(at 90% confidence) = 1.645
Substituting the values we have;
65.3 +/-1.645(5.2/√36)
65.3 +/-1.645(0.86667)
65.3+/- 1.4257
65.3+/- 1.4
= ( 63.9, 66.7)
Therefore at 90% confidence interval (a,b)= ( 63.9, 66.7)
Answer:
11
Step-by-step explanation:
Probability of Max making a shot is 45/60=¾
Here, probability, p=¾ or 0.75
The trials n=15
E=np where E is expectation
Now, when the shots out of 15 trials will be given by np=15*¾=11.25 shots
Rounded off to the nearest interger, this is approximately 11 shots.
Therefore, the possible number of shots in 15 trials for Max is equivalent to 11
