Name the quadrant in which the point (-4, -3) could be found on the coordinate plane
1 answer:
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The chance of selecting 10 men is unlikely in a random selection
<h3>The probability that the jury is made of 2 men</h3>The given parameters are:
- Men = 17
- Women = 15
- Total = 32
The total number of selections is:
Evaluate
Total = 64512240
If 2 men are selected, then 8 women would be selected.
So, the number of ways is:
Evaluate
Ways = 136 * 6435
Ways = 875160
The required probability is:
P = 875160/64512240
P = 0.0136
Hence, the probability that the jury is made of 2 men is 0.0136
<h3>The probability that half the jury are men</h3>If 5 men are selected, then 5 women would be selected.
So, the number of ways is:
Evaluate
Ways = 6188 * 792
Ways = 4900896
The required probability is:
P = 4900896/64512240
P = 0.0760
Hence, the probability that the jury is made of half men and women is 0.0760
<h3>The probability that at least two women are selected</h3>To do this, we make use of the complement rule:
P = 1 - P(Not up to 2 is selected)
When 0 women are selected, then 10 men are selected and when 1 woman is selected, then 9 men are selected
So, the number of ways is:
Evaluate
Ways = 19448 * 1 + 24310 * 15
Ways = 384098
The probability P(Not up to 2 is selected) is:
P = 0.0060
The required probability is:
P = 1 - 0.0060
P = 0.9940
Hence, the probability that the jury is made of at least two women is 0.9940
<h3>The probability that at 10 men are selected</h3>When 10 men are selected, then 0 women are selected
So, the number of ways is:
Evaluate
Ways = 19448 * 1
Ways = 19448
The probability is:
P = 19448/64512240
P = 0.0003
Hence, the probability that the jury is made of 10 men is 0.0003
The selection above can lead to suspicion because the chance of selecting 10 men is unlikely in a random selection
Read more about probability at:
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Answer:
(a) see attached
(b) CD = 29
Step-by-step explanation:
<h3>(a) </h3>See the attachment for a diagram.
In the diagram, we have shown point E on the plane so that BE is parallel to AC.
__
<h3>(b)</h3>Triangle BDE is a right triangle with hypotenuse BD = 25 and leg BE = AC = 15. The length DE is given by the Pythagorean theorem as ...
DE = √(BD^2 -BE^2) = √(625 -225) = 20
Triangle CDE is a right triangle with hypotenuse CD and legs CE = 21 and DE = 20. The length of the hypotenuse is also given by the Pythagorean theorem as ...
CD = √(CE^2 +DE^2) = √(21^2 +20^2) = √841
CD = 29
