The sum of a number and three more than the number.

Mathematics

1 answer:

Likurg_2 [28]3 years ago

7 0

Answer:

Step-by-step explanation:

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zalisa [80]

Spinning on Y out of three letters (G, I and Y) = 1/3
then either an easy or hard = 1/2

so
The probability that the spinner will stop on the letter Y and then easy
= 1/3 x 1/2
= 1/6
= 0.17

answer:
0.17

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3 years ago

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baherus [9]

Answer:

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Step-by-step explanation:

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5 kilograms of coffee are going to be shared equally among 44 people.

liraira [26]

Answer:

Step-by-step explanation:

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Read 2 more answers

A study of 35 golfers showed that their average score on a particular course was 92. The sample standard deviation was 5. We wan

svlad2 [7]

Answer:

$t_{\alpha/2} = t_{0.05/2} = t_{0.025} = 2.0322$

Step-by-step explanation:

We have a sample of size n = 35, $\bar{x} = 92$ and $s = 5$ . As we want to construct a 95% confidence interval to estimate the value of the true population mean $\mu$ , we should use the pivotal quantity given by $T = \frac{\bar{X}-\mu}{S/\sqrt{n}}$ which comes from the t distribution with n - 1 = 35 - 1 = 34 degrees of freedom. Besides we should use the t-value $t_{\alpha/2} = t_{0.05/2} = t_{0.025} = 2.0322$ , i.e., regarding the t-distribution with 34 degrees of freedom, we have an area of 0.025 above 2.0322 and below the probability density function. The rationale behind this is that $P(-2.0322\leq T\leq 2.0322) = 0.95$ because of the simmetry of the t distribution.