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Murrr4er [49]
3 years ago
7

Can anyone help me please if not its okayy!!:)​

Mathematics
1 answer:
NISA [10]3 years ago
3 0
1. a (n) = -0.6(n) + 14.6
2. a (12) =7.4 sec
3. 6th race

Would you like an explanation?
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It's urgent please help
Alchen [17]

Answer:

14y=mxc I'm I right kwkbs

7 0
2 years ago
Please help me!<br><br> Decrease £40 by 10%
Alekssandra [29.7K]

Answer:

36

Step-by-step explanation:

40 * .10 = 4

40-4 = 36

6 0
3 years ago
Read 2 more answers
Define the random variables X and X in words. X is the amount of time an individual waits at the courthouse to be called for ser
densk [106]

<u>Question</u>

Suppose that a committee is studying whether or not there is excessive time waste in our judicial system. It is interested in the mean amount of time individuals spend at the courthouse waiting to be called for jury duty. The committee randomly surveyed 81 people who recently served as jurors. The sample mean wait time was 4 hours with a sample standard deviation of 1.2 hours. Define the random variables X and \bar{X} in words.

Answer:

(B)

  • X is the amount of time an individual waits at the courthouse to be called for service.
  • \bar{X}  is the mean wait time for a sample of individuals.

Step-by-step explanation:

The random variable X is the amount of time for which each of the prospective juror waits at the courthouse before being called for service.

\bar{X}  is the mean wait time for a the given sample of individuals. In the case given,

5 0
3 years ago
Which of the following statements is correct? Population parameters are used to make inferences about sample statistics. Populat
ikadub [295]

Answer: Sample statistics are used to make inferences about population parameters.


Step-by-step explanation:

A number which describes a population is called a parameter, such as a proportion or percentage.

A statistic is a number which may be calculated from the data observed in a random sample without demanding the use of any unknown parameters.

The mean and variance of a population are population parameters.

Thus, fourth statement is the right answer "Sample statistics are used to make inferences about population parameters."

6 0
3 years ago
Read 2 more answers
Are 6/12 and 3/4 equivalent fractions?
anastassius [24]
No they are not! If you multiply 3/4 times 4 to get the denominator as 12, you would get 9/12 which is not equivalent
8 0
3 years ago
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