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marissa [1.9K]
3 years ago
14

What is the probability of flipping two fair coins and having both show tails

Mathematics
1 answer:
Arturiano [62]3 years ago
4 0
The probability would actually be 1:4. this is because the probability of getting tails for ONE coin is 1/2. So now there is 2 coins that need to be tails. To find that probability we need to multiply 1/2 by 1/2 which equals 1/4.<span />
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6x+9=-12<br> Can someone help me with this question
Amiraneli [1.4K]

Answer:

-7/2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the perimeter, in units, of polygon PQRSTU? Enter your answer in the box.
ololo11 [35]

Answer:

24 units

Step-by-step explanation:

Perimeter of Polygon PQRSTU = sum of all its side lengths = PQ + QR + RS + ST + TU + PU

PQ = |-4 -(-2)| = 2 units

QR = |4 - 2| = 2 units

RS = |-2 - 2| = 4 units

ST = |2 -(-2)| = 4 units

TU = |2 -(-4)| = 6 units

PU = |4 - (-2)| = 6 units

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5 0
4 years ago
Factor by Grouping:<br> 8x²+12x+2xy+3y
Yuliya22 [10]

Answer:

(2x +3) (4x +y)

Step-by-step explanation:

refer the image

3 0
2 years ago
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Kaylis [27]

Answer:

d. 3√6 = 7.348

Step-by-step explanation:

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7 0
3 years ago
It is believed that 11% of all Americans are left-handed. A college needs to know the number of left-handed desks to place in th
Alex_Xolod [135]

Answer:

a) State the random variable

Random variable : x

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b) state population parameter

population parameter : P

which is the percentage of all students from the college that are left handed

c) state the hypotheses

The hypothesis are;

Null hypothesis                H₀ : p = 0.11

Alternative hypothesis    H₁ : p > 0.11

d) State the Type I error in the context of this problem.

Type - I Error: Rejecting that the % of all the students from the college that are left-handed is 11% when actually the % is really 11%

(Reject H₀ when H₀ is true)

e) State the Type 11 error in the context of this problem

Type-II Error: Failing to Reject that the % of all the students from the college that are left-handed is 11% when the % is really higher than that

(Fail to reject H₀ when H₀ is false)

7 0
3 years ago
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