If someone could help me with this problem it'd be very much appreciated!! *sorry for the quality btw
Answers
4 out of the 12 cups are decaf, so the odds of selecting a decaf cup by random is 4/12 or 1/3
Alternatively 8 of the 12 cups are caffeinated, so the odds of selecting a caffeinated cup by random is 8/12 or 2/3
P(decaf)=1/3
P(caf)=2/3
But those odds are only for the first cup picked. The second cup has 4 probabilities...
1. Picking a decaf cup for the second time
2. Picking a decaf cup for the first time
3. Picking a caf cup for the second time
4. Picking a caf cup for the first time
So lets find the probability of each event...
1. Picking a decaf cup for the second time. If a decaf cup has already been picked, then the odds of drawing another one is 3/11
2. Picking a decaf cup for the first time. If a decaf cup hasn't already been picked, then the odds of drawing one is 4/11
3. Picking a caf cup for the second time. If a caf cup has already been picked, then the odds of drawing one is 7/11
4. Picking a caf cup for the first time. If a car cup hasn't already been picked, then the odds of drawing one is 8/11.
Okay, so now we can solve for the various possibilities.
1. Picking a decaf cup for the second time
1/3*3/11=3/33
2. Picking a decaf cup for the first time
2/3*4/11=8/33
3. Picking a caf cup for the second time
2/3*7/11=14/33
4. Picking a caf cup for the first time
2/3*8/11=16/33
Both cups were caffeinated, so neither were decaf.
Answer= Neither cup is decaf.
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Which expression is equivalent to -4(X+2)-1/2(2X-6
Answers
Answer:I believe its 1... I hope this helps
Answers
here, quotient =71 2/3=215/3
therefore dividend is 3
Answers
there is 3 feet in 1 yard
so, 7x3=21
21+2=23
so 7 yards and 2 feet = 23 feet
A)mean: 31.4; median: 35.5; mode: 37
B)mean: 31.4; median: 34; no mode
C)mean: 36.7; median: 34; no mode
D)mean: 36.7; median: 37; no mode
Answers
Answer:
The answer is B
Step-by-step explanation:
Mean is adding all of them up and dividing.
Median is sorting them all into one line from least to most, then find the middle number. If there is 2, add both, then divide by 2.
Mode Is the number you see the most. There can be more than one mode.
Answer:
B.
Step-by-step explanation:
20, 21, 27, 34, 37, 39, 42
Median: (middle number) 34
Mode: There are no mode in the following data set.
Mean: 20 + 21 + 27 + 34 + 37 + 39 + 42 = 223/7 = 31.8
Answers
Answer:
-8/5 is the slope.
Step-by-step explanation:
To find slope, it's the change in y over the change in x. Or rise over run.
That would be 8/5.
And this line would be negative because it is going from left to right.
So your final answer would be -8/5 as your slope.
2/5×3/10=6/50=3/25
Answers
Answer: There is not error in finding the product. The result is:
Step-by-step explanation:
1. You have the following multiplication shown in the problem above:
2. To solve it you must multiply the numerators and multiply the denominators, as you can see below:
3. When you simplify the product, you obtain the following result: