Is statistics class hard? i signed up for it and kinda regretting it

Mathematics

1 answer:

Paladinen [302]3 years ago

8 0

Answer:

yes it is hard

Step-by-step explanation:

Most people don’t really learn statistics until they start analyzing data in their own research.

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A fraction changes from 3/4 to 4/10. The numerator changed by _____%; the denominator changed by _____%; the value of the fr

Korvikt [17]

The change from 3/4 to 4/10 is found by obtaining and applying the LCD:

15/20 to 8/20 is a negative change, and the amount of the change was -7/20.

We compare this result to the original value, 15/20, to obtain the percentage change in the fraction:

-7/20
----------- = -7/15 = -0.467 => -46.7%
15/20

4 0

3 years ago

2. What percent of rolling a 2 3 probability of getting HH

faust18 [17]

Answer:

2. The correct answer option is 25%.

3. The experimental probability is 3% greater than the theoretical probability.

Step-by-step explanation:

2. We are given that a number cube is rolled 20 times out of which 5 times it lands on the number 2.

We are to find the experimental probability of getting the number 2.

P (2) = $\frac{5}{20} \times 100 =\frac{1}{4} \times 100$ = 25%

3. The theoretical Outcomes are: HH HT TH TT

So theoretical probability of getting HH = $\frac{1}{4} \times 100$ = 25%

Total number of outcomes = $28+22+34+16$ = 100

So experimental probability of getting HH = $\frac{28}{100} \times 100$ = 28%

Therefore, the experimental probability is 3% greater than the theoretical probability.

6 0

3 years ago

Y= 9x -9 y= 9 substitution method

Aneli [31]

You would plug in the y=9 into the first equation and then have the expression 9=9x-9
. After going through the first steps of solving an expression you would get 18=9x. X=2. Then you would plug in the x value into the first expression to get y=9.

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3 years ago

How many degrees in 2/3 of a circle

sergejj [24]

Answer:

A full circle is 360 degrees so 2/3 is 120

Step-by-step explanation:

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3 years ago

Last free brainliest of the day answer this question 12x4(6+5)x2

almond37 [142]

The answer is 1056 lmk if you need the work