Question

Jaycee follows baseball closely. This season, his favorite professional player has a batting average of 0.250 , or 25% . This means that, on average, he gets one hit every four times he is at bat. Jaycee wants to know the likelihood that his favorite player will get at least two hits in the five times he'll be at bat. So Jaycee conducted a simulation to find out.

He programmed a random number generator to give numbers between 1 and 4, with an outcome of 1 indicating a hit. His results are shown here.

Answer 1

Based on Jaycee's data, what is the probability that his favorite baseball player will get at least two hits in the next game, with five times at bat?

Answer 2

a. 20%
b. 25%
c. 75%
d. 80%

Answer 3

Between 1 and 4 was a mistake. He wants between 0 and 4, or between 1 and 5.

Answer 4

sorry, you didn't mean "between"

Answer 5

So how many of those series show two or more hits?

Answer 6

I gave the attachment its on there, u can see that

Answer 7

It's on there, u can see that. You have to be willing to do some work! :)

Answer 8

I can really figure it out

Answer 9

So of 12 simulations, how many does the player hit the ball at least twice?

Answer 10

5?

Answer 11

How did you get 5? How do you decide from this data whether he hits the ball at least twice in a given simulation?

Answer 12

*and correction, there are 16 simulations, not 12

Answer 13

for example, in the first simulation, we have
3,3,1,4,2

How many hits are there?

Answer 14

Well, "1" denotes a hit, so in this simulation there is only 1 hit out of five. So this simulation does not meet the criteria of "at least two hits"

Answer 15

What about the next simulation
2,2,3,3,3
Does that meet the "at least two hit" criteria?

Answer 16

Yes i think

Answer 17

No it does not, because "1" denotes a hit and none of
2,2,3,3,3
is a "1"

So in this simulation, the player does hit the ball even once.

Answer 18

What about in the next simulation
3,2,2,3,3

Does this meet the "at least two hits" criteria?

Answer 19

No

Answer 20

Right. So now, recount across the 16 simulations how many meet the criteria.

Answer 21

ah, i forgot how to do that, um sorry :(

Answer 22

Let's step through a couple more. What's the fourth simulation?

Answer 23

quick, I can't stay here all day.

Answer 24

i m sorry :(

Answer 25

wait, i m tryin

Answer 26

The fourth simulation is
3,4,3,3,4

Do you see where I'm getting that in your data?

Answer 27

yes

Answer 28

Ok, in this simulation
3,4,3,3,4
How many hits are there?

Answer 29

14

Answer 30

?

Answer 31

From your problem set up, we have
"He programmed a random number generator to give numbers between 1 and 4, with an outcome of 1 indicating a hit."

So in this simulation,
3,4,3,3,4
how many 1s are there?

Answer 32

well, 5

Answer 33

What are you talking about? In the sequence of numbers
3,4,3,3,4
there are no 1s.

Answer 34

? im sorry :( i m really worst

Answer 35

There are one 3s and 4s.

Answer 36

So in this simulation
3,4,3,3,4
tell me how many 1s there are?

Answer 37

same as b4, isnt it?

Answer 38

just tell me explicitly how many 1s

Answer 39

3 n 4

Answer 40

No, there are no 1s in
3,4,3,3,4

Where are the 1s? There's aren't any. So no 1s. Do you agree?

Answer 41

yes

Answer 42

Now, what's the meaning of this? Well, in this simulation a 1 means the player hits the ball when it is pitched to him.

Any other number means the player did not hit the ball.

So in this simulation
3,4,3,3,4

how many times does the player hit the ball?

Answer 43

3 and 4

Answer 44

No. 1 means the player hits the ball. 2 or 3 or 4 means the player did NOT hit ball.

So in this simulation, with data
3,4,3,3,4

how many times does the player hit the ball?

Answer 45

I think 4?

Answer 46

Lord no. Let's go back to the beginning.

Answer 47

Jaycee follows baseball closely. This season, his favorite professional player has a batting average of 0.250 , or 25% . This means that, on average, he gets one hit every four times he is at bat. Jaycee wants to know the likelihood that his favorite player will get at least two hits in the five times he'll be at bat. So Jaycee conducted a simulation to find out.

He programmed a random number generator to give numbers between 1 and 4, with an outcome of 1 indicating a hit. His results are shown here.

Answer 48

Um extremely sorry :( i m makin mad, oh no!

Answer 49

If we choose a random number from 1, 2, 3 and 4, what is the chance that that number will be 1?

Answer 50

Plz forgive me for these thing

Answer 51

If we choose a random number from 1, 2, 3 and 4, what is the chance that that number will be 1?

Answer 52

5 ?

Answer 53

I got no

Answer 54

If you toss a fair coin, what is the chance it will be heads?

Answer 55

tails

Answer 56

If you toss a fair coin, what is the chance it will be heads?

Answer 57

what is the probability that the coin will come up heads?

Answer 58

1/2. The probability the coin comes up heads is 1/2, 0.5 or 50%

Make sense?

Answer 59

oh sorry! Pls forgive me :( for all that

Answer 60

Do you understand the coin? If you understand that, we will have something to build on to answer your question.

Answer 61

So it wud b 25%, got it, am i right?

Answer 62

How did you arrive at 25?

Answer 63

How did you arrive at 25%?

Answer 64

I just guess from that which u told,the probability the coin comes up heads is 1/2, 0.5 or 50%

Answer 65

No, i think um wrong, sorry guys!

Answer 66

Thing is i dont understand probability at all, even i read the lessons thousand time still not working, thats y, i m asking help :(

Answer 67

Why its so hard for me? :(

Answer 68

actually, u also improved me alot in many math, chloro. thats y, i don't ask much from anyone, it just today i m stuck with this :(

Answer 69

I m sorry @JamesJ u tried to help me very well, its just me, who doesnt know anything :(

Answer 70

Thnk u for coming to help and helping me so far with patience, bt u did gr8, its just me who failed to understand :(

Answer 71

can u guys able to help me?

Answer 72

No :(

Answer 73

I guess nobody wont able to do :( cuz i m really worse

Answer 74

hello

Answer 75

i can help