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Allushta [10]
2 years ago
7

Mags and Vector are playing a board game. They use a spinner to determine if they should move forward or backward. They roll a n

umber cube with the numbers 1-6 on it to determine how many spaces to move. What is the probability of moving backward an even number of spaces?
Mathematics
1 answer:
Marat540 [252]2 years ago
5 0

Answer:

1/4

Step-by-step explanation:

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Since an instant replay system for tennis was introduced a a major tournament, men challenged 1390 referee calls, with the resul
alexandr402 [8]

Answer:

H0: μm − μw = 0

against the claim

Ha: μm − μw ≠ 0

Since the calculated value of z= 0.6177 does not lie in the critical region the null hypothesis is accepted that men and women have equal success in challenging calls.

Step-by-step explanation:

1) Let the null and alternate hypothesis be

H0: μm − μw = 0

against the claim

Ha: μm − μw ≠ 0

2) The significance level is set at 0.05

3) The critical region is z > + 1.96 and z< -1.96

4) The test statistic

Z= p1-p2/ sqrt [pcqc( 1/n1+ 1/n2)]

Here p1= 411/ 1390= 0.2956     and    p2= 213/753=0.2829

pc = 411+ 213/1390+753

pc=624/2143

pc= 0.2912

qc= 1-pc= 1-0.2912=0.7088

5) Calculations

Z= p1-p2/ sqrt [pcqc( 1/n1+ 1/n2)]

z= 0.2956-0.2829/√ 0.2912*0.7088( 1/1390+ 1/753)

z= 0.0127/ √0.2064 (0.00204)

z= 0.0127/0.02056

z= 0.6177

6) Conclusion

Since the calculated value of z= 0.6177 does not lie in the critical region the null hypothesis is accepted that men and women have equal success in challenging calls.

3 0
3 years ago
50 POINTS!!!
Dahasolnce [82]

Answer:

63% of students

Step-by-step explanation:

Z = (X  -  μ) / σ

Z = 520 - 500 / 60

Z = 0.33

ON THE Z-TABLE

0.33 = 0.6293

<em>62.93%  =  63% of students answer</em>

8 0
2 years ago
6th grade math, help me please:)
zalisa [80]

Answer:

B

broh the answer is b broh

5 0
3 years ago
Is 63% a real number?
Elden [556K]
No I do not believe it is.
8 0
3 years ago
100!!! Points
docker41 [41]
  • See the line is parallel to x axis.
  • The equation of that top is y<5

So

The range is

  • (-oo,0)U(oo,5)

So

  • -oo<y<5

Option D is correct

3 0
2 years ago
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