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anygoal [31]
2 years ago
6

On a two question true or false quiz what is the probability of guessing both answer answer correctly

Mathematics
1 answer:
algol132 years ago
6 0
25% chance of guessing each question correctly

50% chance to guess one correctly
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I have to find out if there equivalent? 96 miles on 4 gallons,380 miles on 15 gallons?
erik [133]
24 miles is 1 gallon so 360 miles is 15 gallons + 24 is 384 miles so they are not equivalent!
6 0
2 years ago
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A meteorologist who sampled 4 thunderstorms found that the average speed at which they traveled across a certain state was 16 mi
DENIUS [597]

Answer:

The  90 % confidence  interval  for the mean population is (11.176  ; 20.824 )

Rounding to at least two decimal places would give 11.18 , 20.83

Step-by-step explanation:

Mean = x`= 16 miles per hour

standard deviation =s= 4.1 miles per hour

n= 4

\frac{s}{\sqrt n}  =  4.1/√4= 4.1/2= 2.05

1-α= 0.9

degrees of freedom =n-1=  df= 3

∈ ( estimator  t with 90 % and df= 3 from t - table ) 2.353

Using Students' t - test

x`±∈ * \frac{s}{\sqrt n}

Putting values

16 ± 2.353 * 2.05

= 16 + 4.82365

20.824  ;        11.176

The  90 % confidence  interval  for the mean population is (11.176  ; 20.824 )

Rounding to at least two decimal places would give 11.18 , 20.83

4 0
2 years ago
Read 2 more answers
Four more than three times a number is thirteen. What is this number?
Ostrovityanka [42]

Answer:

3

Step-by-step explanation:

13-4=9

9/3=3

4 0
2 years ago
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Will give brainly,5 stars,and thanks
Irina-Kira [14]

Answer:

Give the person above me brainliest

Step-by-step explanation:

6 0
2 years ago
Please help and thank you
masya89 [10]

Answer:

B. 407

Step-by-step explanation:

equation: y= A(1- r/n)^nt

y=471(1-(.07/1))^1(2)

you should get 407.37 as your answer

3 0
3 years ago
Read 2 more answers
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