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miskamm [114]
3 years ago
5

If we buy 20 pickles what is the experimental probability of winning 5 or more tickets

Mathematics
1 answer:
Mrac [35]3 years ago
8 0

Answer:

Pr = 0.66

Step-by-step explanation:

Given

See attachment for complete question

Required

P(x \ge 5)

From the attachment, we have:

S = 2 + 8 + 4+20+21+19+17+5+2+2

S =100 ---- the sample size

Next, we list out all outcomes more than or equal to 5.

i.e.

x \ge 5

5 is represented with the vertical blue rectangle (with frequency 21).

So, the other elements are to the right of frequency 21.

So, we have:

x \ge 5 = 21+19+17+5+2+2

x \ge 5 = 66

The probability is then calculated as:

Pr = \frac{x \ge 5}{S}

This gives

Pr = \frac{66}{100}

Pr = 0.66

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Can any one help me with this
jonny [76]

Answer: C

Step-by-step explanation:

Since this is an isosceles triangle as indicated by the markers on QP and PR, we know that QS and SR are equivalent.

To find the value of n, we set QS and SR equal to each other.

6n+3=4n+11                     [combine like terms]

2n=8                                 [divide both sides by 2]

n=4

Now that we know n=4, we know that A is incorrect. What we can do is use the value of n to solve for QS, SR, and QR.

QS

6(4)+3=13

Since the length of QS is 13, we know B is incorrect.

SR

4(4)+11=27

Since SR is 27, C is a correct answer.

QR

13+27=40

Since QR is 40, the only correct answer is C.

3 0
3 years ago
I need help with scientific notation (there's a pic)
marin [14]
11 times 10 to the power of 21 is the answer to the problem.

(The first one.)
7 0
3 years ago
-f=-100<br> solve for f<br> f=<br> wold the answer be 1
marshall27 [118]
1 is incorrect. to solve for f, you have to get it alone, and right now you have a negative sign in your way.

you can eliminate the negative by dividing both sides by -1:

-f = -100

divide by -1 to cancel out the - in front of f

f = 100
6 0
3 years ago
Given the geometric sequence: –880, –220, –55, … The next term in the sequence is
dimulka [17.4K]

Answer:-55/4

Step-by-step explanation:

-880,-220,-55,...

First term=a=-880

Common ratio=r=-220/-880=1/4

Using the formula

Tn=a x r^(n-1)

T4=-880 x (1/4)^(4-1)

T4=-880 x (1/4)^3

T4=-880 x 1/4 x 1/4 x 1/4

T4=-880 x 1/64

T4=-880/64

T4=-55/4

6 0
3 years ago
Read 2 more answers
Prove that cos2α = 1-tan²α / 1+tan²α​
Rufina [12.5K]

Answer:

see the explanation

Step-by-step explanation:

we have

cos(2\alpha)=\frac{1-tan^2(\alpha)}{1+tan^2(\alpha)}

Prove

Remember that

cos(2\alpha)=cos^2(\alpha)-sin^2(\alpha)

tan(\alpha)=\frac{sin(\alpha)}{cos(\alpha)}

substitute in the expression above

cos^2(\alpha)-sin^2(\alpha)=\frac{1-(\frac{sin(\alpha)}{cos(\alpha)})^2}{1+(\frac{sin(\alpha)}{cos(\alpha)})^2}    

cos^2(\alpha)-sin^2(\alpha)=\frac{(\frac{cos^2(\alpha)-sin^2(\alpha)}{cos^2(\alpha)}}{(\frac{cos^2(\alpha)+sin^2(\alpha)}{cos^2(\alpha)}}}

Remember that

cos^2(\alpha)+sin^2(\alpha)=1

Simplify

cos^2(\alpha)-sin^2(\alpha)=cos^2(\alpha)-sin^2(\alpha) ---> is proved

4 0
3 years ago
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