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cestrela7 [59]
3 years ago
6

A bag contains four blue chips and five green chips if a person chooses a green chip and does not replace the chip and then sele

cts a blue chip or the events independent or dependent calculate the probability
Mathematics
1 answer:
sdas [7]3 years ago
7 0

Answer:

1.388% (repeating the 8)

Step-by-step explanation:

4 (blue chips) + 5 (green chips) - 1.9 repeating% for either

9 (ammount of chips) - 1 (green chip taken out of the bag) = 8

4 (blue) + 4 (green) - 1/8% for either one

1/9 * 1/8 = 1/72 =

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Hugo is buying DVDs that cost $15 each. He has a coupon for $5 off his total purchase. Write an equation to find the c the total
Allisa [31]

Answer:

85

Step-by-step explanation:

15 times 6 is 90. This is how much money he spends on 6 DVDs if they're all $15. 90 subtracted by 5 (remember - he gets $5 off his entire purchase, not just each individual DVD) would be 85!

4 0
3 years ago
What was developed as a tool used to investigate a change in natural sciences?
dolphi86 [110]

The Scientific Method.

Hope this helps ^^

4 0
3 years ago
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How much greater is the median number of pairs of shoes in the inventory at the Golf Pro Shop than the median number of pairs of
larisa86 [58]
The median if golf pro shop is 20 pairs greater than tennis pro shop
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3 years ago
The prior probabilities for events A1 and A2 are P(A1) = 0.30 and P(A2) = 0.55. It is also known that P(A1 ∩ A2) = 0. Suppose P(
k0ka [10]

We're given the following probabilities:

P(A_1)=0.30

P(A_2)=0.55

P(A_1\cap A_2)=0

P(B\mid A_1)=0.20

P(B\mid A_2)=0.05

(a) Yes, A_1 and A_2 are mutually exclusive. This is exactly what zero probability of their intersection means. The two events cannot occur simultaneously.

(b) Use the definition of conditional probability to expand:

P(A_1\cap B)=P(A_1)P(B\mid A_1)=0.30\cdot0.20=0.06

P(A_2\cap B)=P(A_2)P(B\mid A_2)=0.55\cdot0.05=0.0275

(c) By the law of total probability,

P(B)=P(A_1\cap B)+P(A_2\cap B)=0.06+0.0275=0.0875

(d) Bayes' theorem says

P(A_1\mid B)=\dfrac{P(A_1)P(B\mid A_1)}{P(B)}=\dfrac{0.30\cdot0.20}{0.0875}\approx0.686

P(A_2\mid B)=\dfrac{P(A_2)P(B\mid A_2)}{P(B)}=\dfrac{0.55\cdot0.05}{0.0875}\approx0.314

3 0
3 years ago
4x - 6 = 30 can you solve it
olya-2409 [2.1K]

Answer:

x = 9

Step-by-step explanation:

take -6 to the other side so you add it to 30 = 36

equation is now 4x = 36

divide 4/4 and 36/4

x = 9

6 0
3 years ago
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