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kotegsom [21]
3 years ago
10

A bag contains 3 red balls and 2 blue balls. A ball is taken at random from the bag and then put back. And then a second ball is

then taken out of the bag. The probability tree for this situation is shown below. What is the probability of getting 2 red or 2 blue balls?
Question 7 options:


.52


.36


.16


.2
Mathematics
1 answer:
mrs_skeptik [129]3 years ago
5 0
6 balls in the bag
1/6 getting the random color
1/6=about .16
so C
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If 400 students at the school took the SAT, how many scored in the 1301 to 1600 range?
harina [27]

Answer:

56 students scored in the range of 1301 to 1600.

Step-by-step explanation:

The given question is without any figure or attachment. Here is the figure attached with the answer.

In the figure attached,

total number of students who took SAT = 400

Percentage of the students who scored 1301 to 1600 range = 14% (given in the pie chart)

Total number of students who are in this range = 14% of total number of students

= 400\times\frac{14}{100}

= 56

Therefore, 56 students scored in the range of 1301 to 1600.

4 0
3 years ago
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xxMikexx [17]
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8 0
3 years ago
If you draw a card with a value of three or less from a standard deck of cards, I will pay you $43. If not, you pay me $11. (Ace
valina [46]

If W is a random variable representing your winnings from playing the game, then it has support

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There are 52 cards in the deck. Only the 1s, 2s, and 3s fulfill the first condition, so there are 12 ways in which you can win $43. So W has PMF

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You can expect to win

E[W]=\displaystyle\sum_ww\,P(W=w)=\frac{43\cdot3}{13}-\frac{11\cdot10}{13}=\boxed{\frac{19}{13}}

or about $1.46 per game.

3 0
3 years ago
Round 823 to the nearest ten
bulgar [2K]

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4 0
2 years ago
Read 2 more answers
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Answer:

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Step-by-step explanation:

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