Question:
If a sample of 2 hammer is selected
(a) find the probability that all in the sample are defective.
(b) find the probability that none in the sample are defective.
Answer:
a 
b 
Step-by-step explanation:
Given
--- hammers
--- selection
This will be treated as selection without replacement. So, 1 will be subtracted from subsequent probabilities
Solving (a): Probability that both selection are defective.
For two selections, the probability that all are defective is:
Solving (b): Probability that none are defective.
The probability that a selection is not defective is:
For two selections, the probability that all are not defective is:
Answer: 1/20
Step-by-step explanation: = 1+8:36= 9 hours and 36 minutes
= 9+ 36/60= 9 3/5 hours
=48/5
Decrease per hour= 12/25 divided by 48/5
= 12/25 times 5/48= 1/20
Ans 1/20
Answer:
the game must be played in groups of 13 draws, with a cost of $28 for the 13 draws.
Step-by-step explanation:
Probability of drawing any of the 13 balls is the same. So the expected value of play is the average of the values of each card.
The only losing card is the ace; the player loses $20 if that card is drawn.
Each of the 3 face cards wins $10; each of the remaining 9 cards wins $2.
So the average value of each draw is
= 28/13
Therefore, on average the player will win $ 28/13. to be a fair game the player must pay $28/13 for a game.
that is not possible, unless the game must be played in groups of 13 draws, with a cost of $28 for the 13 draws.
0.71358024691
If you are rounding then the answer would be 0.71
Answer:
The answer to your question is: Yes, x - 5 is a factor of the polynomial.
Step-by-step explanation:
To answer this question you need to divide the polynomial by the factor and if there is nothing left, they are factor.
<u>x³ -4x² -7x +10</u>
x -5
x² + x -2
x-5 x³ -4x² -7x +10
-x³ + 5x²
x² - 7x
-x² + 5x
-2x + 10
+2x -10
0 0 These zeros tell us that the linear
expression is a factor of the polynomial
