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3 years ago

10, 9, 11, 8, 15, 18, 13 1. Calculate the mean, median, and mode. Round to the nearest tenth.

Mathematics

2 answers:

adell [148]3 years ago

7 0

Answer:

Median: 11

Mean: 12

Mode: none

Step-by-step explanation:

M A T H W A Y helps

Mode is something that is repeated multiple times

Svetach [21]3 years ago

3 0

Answer:

Median- 11

Mean-12

Mode-none

Step-by-step explanation:First step: Put the numbers in order 8,9,10,11,13,15,18

The median is the middle number so that would be 11

Median-11

Mode is the most repeated number as you can see there is none

Mode- none

Mean is the average of all the numbers so first you add them all together and divide it by 7 because there are 7 numbers in total.

Mean- 12

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3 years ago

The first term of an arithmetic sequence is equal to four and the common difference is three. find the formula for the value of

hichkok12 [17]

The formula for the value of nth term is $a_{n}$ = 3n + 1

Step-by-step explanation:

The formula of the nth term in the arithmetic sequence is

$a_{n}=a+(n-1)d$ , where

a is the first term of the sequence
d is the common difference between each two consecutive terms

∵ The first term of an arithmetic sequence is equal to four

∴ a = 4

∵ The common difference is equal to three

∴ d = 3

- Substitute these values in the rule of the nth term

∵ $a_{n}=a+(n-1)d$

∴ $a_{n}=4+(n-1)3$

- Simplify it

∴ $a_{n}=4+3n-3$

∴ $a_{n}=1+3n$

The formula for the value of nth term is $a_{n}$ = 3n + 1

Learn more:

You can learn more about the sequence in brainly.com/question/7221312

#LearnwithBrainly

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3 years ago

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