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soldier1979 [14.2K]
2 years ago
13

A variable has a mean of and a standard deviation of . observations of this variable have a mean of and a sample standard deviat

ion of . Determine the observed value of the
Mathematics
1 answer:
RideAnS [48]2 years ago
8 0

Answer:

the mean is 26

Step-by-step explanation:

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1 Solve for the unknown variable:
Burka [1]

Answer:

Approximately 6.4

Step-by-step explanation:

We can use the pythagorean thereom here, that tells us (a^2)+(b^2)=c^2. C is the hypotenuse, the side opposite from the right angle, while a and b are the other sides. We can insert 5 and 4 as a and b, and solve for c

:(5^2)+(4^2)=c^2

:25+16=c^2

:41=c^2

:sqrt(41)=6.4=c              (We square rooted both sides. 6.4 is only rounded to the nearest hundredths place.) Hope this helps!

8 0
2 years ago
Read 2 more answers
How do you do 3 through 4
Furkat [3]

#3 is not a function because there are two answers for one out put

#4 is a function because it is a straight line

8 0
3 years ago
Ronaldo can kick a soccer ball 35 meters per second which is about 80 mph. He kicked the ball from one end of the field to the o
professor190 [17]

Answer:

t=3.142sec

Step-by-step explanation:

From the question we are told that:

Speed of ball V=35m/s\approx 80 mph

Length of field l=110m

Generally the equation for Time taken t is mathematically given by

 t=m/V

 t=110/35

 t=3.142sec

 t \approx \frac{3.142}{60}

 t \approx 0.05hrs

Therefore it will take the ball to get from one end of the field to the other

t=3.142sec

3 0
2 years ago
Bonus: Give the nth term for the sequence below:
Elenna [48]

Answer: 256×4=1024

Next item is determined by recognizing how the previous items are

calculated.

1

1×4=4

4×4=16

16×4=64

64×4=256

256×4=?The next item is

256×4=1024

8 0
2 years ago
A true-false test contains ten questions. How many different ways are there of completing this test?
mezya [45]

Answer:

In case of true false questions there are two ways to answer each questions and we have 10 questions . So as per the rule of permutation we have (2×2×2×2×2×2×2×2×2×2) or 2^10 or 1024 no. Of ways to answer 10 true false questions in the exam.

Step-by-step explanation:

Please give me a 5 star thanks and give me Brainliest

6 0
2 years ago
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