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IRISSAK [1]
3 years ago
9

What is the conditional probability that exactly four heads appear when a fair coin is flipped five times

Mathematics
1 answer:
cestrela7 [59]3 years ago
8 0

Answer:

5/32

Step-by-step explanation:

If a coin if flipped five times with four heads, then it has exactly one tail. The number of way to arrange four heads and one tail are as follows:

T H H H H

H T H H H

H H T H H

H H H T H

H H H H T

Essentially, there are five way because there are five "positions" where the tail could be.

Then, you need to find the total amount of possibilities for flipping a coin five times. Every time you flip it, there are two possibilities- heads and tails. Therefore, for five flips, the total amount of possibilities is

2x2x2x2x2 = 32

You know that

probability= # of desired outcome

                   ----------------------------------  

                      # of total outcomes

So the probablity is 5/32.

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The product of 6 and seven times c
Sunny_sXe [5.5K]

Answer:

42

Step-by-step explanation:

8 0
3 years ago
Please do any of them or all i really need this done
stepan [7]
1. 3.75+4.50=8.25- 5.25= $3 profit

She made 8.25 off selling bracelets to others, which adds money to her "account", but also spent money on crafting supplies, which results in her subtracting from her "account."
6 0
3 years ago
AKILAP is $102 per month for cell phone plan plus $0.25 per minute be on the first 700 minutes her bill was one $123.75 last mon
svp [43]

Answer:

She used 87 minutes last month

Step-by-step explanation:

Step 1: Express the total monthly phone bill

The total monthly phone bill can be expressed as follows;

A=F+(R×M)

where;

A=total monthly phone bill

F=fixed income per month

R=additional rate per minute

M=total number of minutes

In our case;

A=$123.75

F=$102 per month

R=$0.25 per minute

M=m

replacing;

123.75=102+(0.25 of m)

123.75=102+(0.25×m)

123.75=102+0.25 m

123.75-102=0.25 m

0.25 m=21.75

m=21.75/0.25

m=87 minutes

She used 87 minutes last month

7 0
3 years ago
What is the value of arc x if the<br> central angle is 140°?<br> 140
ololo11 [35]

Answer:

it'll just be 140º

Step-by-step explanation:

because the central angle and the arc value are both congruent

7 0
3 years ago
The sum of 6 consecutive odd numbers is 204. What is the fourth number in this sequence?​
stiv31 [10]

Answer:

35

Step-by-step explanation:

1. Set up a equation.

2. X is the first, so the ones after x are x+2, x+4, x+6, x+8, and x+10.

3. That means that x+x+2+x+4+x+6+x+8+x+10=204.

4. Simplify. You would get that 6x+30=204.

5. Solve for x. 6x=174, so x=29.

6. Get the fourth number in the sequence. 29+6=35.

Answer: The fourth number in this sequence is 35.

3 0
3 years ago
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