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zlopas [31]
3 years ago
11

A multiple choice question has 18 possible​ answers, only one of which is correct. Is it​ "significant" to answer a question cor

rectly if a random guess is​ made? Consider an event to be​ "significant" if its probability is less than or equal to 0.05.a. Nob. Yes
Mathematics
1 answer:
vodka [1.7K]3 years ago
7 0

Answer: No

Step-by-step explanation:

Considering significant: p <= 0.05

A multiple choice question has 18 possible​ answers, only one of which is correct.

which means that the probability is 1 out 18, so

p = 1/18 = 0.056

As 0.056 > 0.050

Then, it is not significant

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15¾÷1¾=?<br><br> O A<br> O B. 9<br> O C. 15¾<br> O D.4¾
Lyrx [107]

Answer:

9

Step-by-step explanation:

first, turn both fractions into improper

turn it into multiplication

simplify

8 0
2 years ago
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One side of a rectangle is 3 m more than the other. If the perimeter of the rectangle is 30 m, what are its dimensions? *
uranmaximum [27]

Answer:

the length— 6

width— is 9

Step-by-step explanation:

you said One side— 3m MORE

so we will consider the length Number as X

we will consider width As three plus X

- You want to know the Perimeter. So we have to

add.

— so the expression is 3+3+x+x+x+x = 30

it is then simplified to 6+4x= 30

then we should be able to find out the X  which is 6

when we substitute the values with dimensions, you will get

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I hope This Helped!

6 0
3 years ago
If a car travels 85 kilometers in one and 1/6 hours. At this rate, how far will it travel in four 1/5 hours
mafiozo [28]

Answer:

306 km

Step-by-step explanation:

put both of them to equal in ratio form so now

85 / (7/6) = x / (21/5)

85 * (21/5) = 7/6x

357 = 7/6x

x = 306 km

4 0
4 years ago
A water cooler holds 15 liters of sports drink. Approximately how many gallons is this
Nadya [2.5K]
The correct Anwser it is about 4 gallons because in 1 gallon tgere is 3.75 liters
7 0
3 years ago
What pair of factors of −42 has a sum of 1? PLEASE HELP
anastassius [24]

Answer:

-6 and 7

Step-by-step explanation:

-6 and 7 multiply to be -42.

When you add the two values: -6+7=1

Their sum is 1!

Hope this helps

4 0
4 years ago
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