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zimovet [89]
3 years ago
6

A random sample of 15 dvd players has a mean price of $64.30 and a standard deviation of $5.60. find a 95% confidence interval f

or the mean price of all dvd players.
Mathematics
1 answer:
makkiz [27]3 years ago
8 0
No i do not kmnow the anweserrgfgghtg
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What is the product of − 3/11 and − 2/15? please explain.
emmainna [20.7K]

ANSWER

The product is

\frac{2}{55}

EXPLANATION

To find the product of

-  \frac{3}{11}

and

\frac{ - 2}{15}

means we should multiply the two fractions.

We multiply to obtain,

-  \frac{3}{11}  \times  -  \frac{2}{15}

=  -  \frac{3}{11}  \times  -  \frac{2}{3 \times 5}

Cancel the common factors:

=  -  \frac{1}{11}  \times  -  \frac{2}{5}

Now, multiply the numerators separately and the denominators too separately.

=  \frac{ - 1 \times  - 2}{11 \times 5}

This simplifies to,

= \frac{2}{55}

4 0
3 years ago
Evaluate the following expression:
grigory [225]

Answer:

5.25

Step-by-step explanation:

7 0
3 years ago
In a race competition the probability that Harry wins is 0.4, the probability that Krish wins is 0.2 and the probability that Jo
Leya [2.2K]

Answer:

jonny is the winner.

Step-by-step explanation:

No. of wins harry has = 0.4

No. of wins krish has = 0.2

No. of wins jonny has = 0.3

To find the prbability of harry and jonny = 0.4 + 0.3

                                                                  =  0.7

Now to see who wins we have to add krish's wins and harry's win, because harry has the greatest number of wins.

krish = 0.2

harry = 0.4

        =  0.6

now we have all three's score, so we will now see which is the greatest number.

krish= 0.6

harry = 0.4

jonny = 0.7

The greatest number is 0.7.

Hence, jonny is the winner!

HOPE IT HELPS PLZ MARK ME BRAINLIEST :D

3 0
2 years ago
What can be concluded about a
hammer [34]

Answer:

b c e

Step-by-step explanation:

3 0
2 years ago
Which is greater 0.98 or 0.980​
katovenus [111]

Answer:

They are equal.

Step-by-step explanation:

8 0
3 years ago
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