Write an expression with 4 terms, containing the coefficient 3, 6, and 9

Mattel Corporation produces a remote-controlled car that requires three AA batteries. The mean life of these batteries in this p

goldfiish [28.3K]

Answer:

0.0406, 0.8284,0.7887

Step-by-step explanation:

Given that Mattel Corporation produces a remote-controlled car that requires three AA batteries

X is N(34, 5.5)

Hence sample size of 25 would follow a t distribution with df = 24

This is because sample size <30

t distribution with df 24 would be bell shaped symmetrical about the mean and unimodal.

Std error of sample mean = std dev /sqrt n= $\frac{5.5}{5} \\=1.1$

Prob (X>36) = $P(t>\frac{36-34}{1.1} ) = P(t>1.82)\\= 0.04063$

i.e nearly 4.1% of the sample would have a mean useful life of more than 36 hours

X>33.5 implies $t>-0.45$

=0.82837

=0.8284 proportion will have a mean useful life greater than 33.5 hours

Proportion between 33.5 and 36 hours

= $0.3284+0.4593=0.7887$

6 0

3 years ago

Here are ten numbers

ser-zykov [4K]

Solution,

Given data=3, 7 , 2 , 4, 7, 5, 7, 1, 8, 8

a.Mode= 7 because it has more frequency in comparison to others.

b.Arranging the data in ascending order:

: 1,2,3,4,5,7,7,7,8,8

N(total number of items)=10

Median=(N+1/2)th item

 = (10+1/2)th item

 = (11/2)th item

 = 5.5th item

Again,

5th item+6th item/2

 = 5+7/2

=12/2

= 6

c. summation FX=52

 N=10

Mean= summationfx/N

 =52/10

 =5.2

D. Range= highest score- lowest score

 = 8-1

 =7

Hope it helps

Good luck on your assignment

4 0

4 years ago

Read 2 more answers

A dominant ideology is a set of cultural beliefs that help to maintain powerful social, economic, and political interests. a sub

vodomira [7]

Step-by-step explanation:

A dominant ideology is a set of cultural beliefs that help to maintain powerful social, economic, and political interests. In dominant ideology voter are influenced by dominant groups and institutions of the society. At the end it these dominant groups that are benefited.

All other options are irrelevant with respect to dominant ideology.

5 0

3 years ago

How do you turn 0.65 decimal into a fraction or mixed number into simplest form

Yakvenalex [24]

Put 65 over 100 so it's a fraction and simplify from there i think

5 0

4 years ago

Read 2 more answers

Quinn used breaking apart to find the product of 37 x 4 her answer was 124 what did she do incorrectly

vfiekz [6]

37+37+37+37=148 all you have to do is add 37 together four times

5 0

4 years ago