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gulaghasi [49]
2 years ago
13

What is the value of the expression below? (3 x 4) - 6] + 4 x 2

Mathematics
1 answer:
Olegator [25]2 years ago
8 0
14 is your answer :)
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A company that produces computers recently tested the battery in its latest laptop in six separate trials. The battery lasted 8.
Anna35 [415]

confidence interval for the mean battery life in the new model is [7.9489, 8.3045].

What is confidence interval ?

A confidence interval, in statistics, refers to the chance that a population parameter can fall between a collection of values for an exact proportion of times.

Main body:

Formula for confidence interval is =

CI = x- bar ± z*s/√n            where,

CI = confidence interval

x- bar = sample mean

z = confidence level value

{s} = sample standard deviation

{n} = sample size  

given ;

n = 6

mean = (8.23+7.89+8.14+8.25+8.30+ 7.95)/6

         =  8.127

value of z for 95% C.I. = 1.96

C.I. = 8.127 ± 1.96 * 0.22/√6

C.I. = 8.127 ± 0.1781

C.I. =[7.9490, 8.3044]

Hence correct option is A.

To know more about confidence interval , visit:;

brainly.com/question/15712887

#SPJ4

         

8 0
11 months ago
Isolate the h in c=25h+350
Sati [7]
Subtract 350 from both sides then divide both sides by 25.

(c-350)/25 = h
7 0
3 years ago
Hiiiiooo❤️Can someone please help me out with my question
marin [14]
The answer is D. 50 because x equals 7 so if you fill that in for 4x-3 and multiply it by 2, you get 50
8 0
3 years ago
Read 2 more answers
Jerry is trying to earn $209 for some new video games. If he charges $47 to mow a lawn, how many lawns will he need to mow to ea
Helen [10]
At least 5. because 47x4=188 which isn’t enough money, and 47x5=235, which goes over but you have to have more money than less money
6 0
3 years ago
Is this a function or no?
adoni [48]

Answer:

Yes

Step-by-step explanation:

If you can draw a verticle line through any part and it only crosses the line once it is a function

4 0
3 years ago
Read 2 more answers
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