The probability that a divisor of 2 or 9 is chosen when the spinner is spun once is 2/3.
<h3>What is the probability?</h3>
Probability determines the chances that an event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.
P(2 or divisor of 9) = section that has a divisor of 2/ total number of sections + section that has a divisor of 2/ total number of sections
1/3 + 1/ 3 = 2/3
To learn more about probability, please check: brainly.com/question/13234031
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Step-by-step explanation:
1/3(6+3)
= 1/3(9)
= 3
......
Answer:
we can conclude that there is no significant evidence to conclude that the mean score in 2010 differs from the mean score in 2009.
Step-by-step explanation:
H0 : μ = 582
H1 : μ < 582
Test statistic :
T = (xbar - μ) ÷ σ/√n
Xbar = 515 ; n = 20 ; σ = 120
T = (515 - 582) ÷ 120/√20
T = -67 / 26.832815
T = 2.50
Pvalue at t score = 2.50 ; df = 19 is 0.0187
At α = 0.0187
Pvalue > α ; Hence, we fail to reject the Null
Hence, we can conclude that there is no significant evidence to conclude that the mean score in 2010 differs from the mean score in 2009.
Do 25 divided by 1/2 to get your answer. Thanks! Brainly Team
Answer: The area that it covers is 78.53 square meters
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Area of a circle (A): π r²
Where:
r = radius (in our case is 5 meters)
So, replacing with the values given:
A= π (5)² = π 25 =78.53 square meters
In conclusion, the area that it covers is 78.53 square meters
Feel free to ask for more if needed or if you did not understand something.
