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ruslelena [56]
3 years ago
12

A fair coin is flipped six times. what is the probability that heads occurs exactly 4 times if it is known that heads occurs at

least four times?
Mathematics
1 answer:
Elza [17]3 years ago
6 0
2/3 I'm pretty sure it about that

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Jordan is chopping wood for the winter. For 10 days in a row, he follows the same process: In the morning, he chops 20 pieces of
Ronch [10]

i would write this:

total = 10(20+30) +5

8 0
4 years ago
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Brian is riding is bike. he biked a distance of 14 miles at a rate of 14 miles per hour. rearrange the distance formula, d = rt,
elena55 [62]

Answer:

60 Minutes

Step-by-step explanation:

The formula d = rt represent distance equal to rate * time

As were are looking for time, we can plug in d and r for 14 = 14t

With this, we can see the t = 1, though this is still in hours. Convert 1 hour to minutes, and we'll be given 60 minutes which is our answer, C

4 0
3 years ago
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colin has a plank of wood that is 2 yards long. If he plans to cut this plank into 6/7 yard pieces, how many pieces can he cut?
ELEN [110]
He can cut 2 3/7 peices
6 0
3 years ago
Question 2
inysia [295]

Answer:

(C)600

Step-by-step explanation:

There are 25 Kids on the Team

The Captain can be elected in 25 ways.

Now, once the captain has been elected, we remove him from the selection.

The Co-Captain can be elected in (25-1)=24 ways.

Therefore, the captain and co-captain of the team can be elected in:

25 X 24 ways

=600 Ways.

The correct option is C.

4 0
4 years ago
In , the Pew Internet & American Life Project asked teens aged to several questions about their attitudes toward social medi
notsponge [240]

Complete Question

The  complete question is shown on the first uploaded image

Answer:

a

\^ p_1 =  0.8102

b

\^ p_2 =  0.6904

c

\^ p_3 =  0.3701

Step-by-step explanation:

From the question we are told that

   The sample size is  n  =  743

    The number that said social media makes them feel more connected  to what is going on in their friends' lives is  k =  602

   The number that said social  media helps them interact with a more diverse group of people is  y =  513

   The  number that said feel pressure to post content that will get a lot of likes and comments is  c  =  275

Generally a point estimate of the proportion of teens aged 13 to 17  who say social media makes them feel more connected to what is going on in their friends' lives is mathematically represented as

        \^ p_1 =  \frac{k}{n}

=>      \^ p_1 =  \frac{602}{743 }\

=>      \^ p_1 =  0.8102

Generally a point estimate of the proportion of teens aged 13 to 17  who say social media helps them interact with a more diverse group of people is mathematically represented as

        \^ p_2 =  \frac{k}{n}

=>      \^ p_2 =  \frac{513}{743 }\

=>      \^ p_2 =  0.6904

Generally a point estimate of the proportion of teens aged 13 to 17   who feel pressure to post content that will get a lot of likes and comments is mathematically represented as

        \^ p_3 =  \frac{k}{n}

=>      \^ p_3 =  \frac{275}{743 }

=>      \^ p_3 =  0.3701

8 0
3 years ago
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