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Evgen [1.6K]
3 years ago
11

A coin is tossed 20 times. The outcome H or heads And T for tails are recorded, tails for 11 times heads for 9. What is the expe

rimental probability of getting heads?
Mathematics
1 answer:
zmey [24]3 years ago
6 0
You simply divide the number of times you get heads (which is 9) over the total number of coin flips (which is 20)

So the answer as a fraction is 9/20

Converting to decimal form, you'd get 9/20 = 0.45
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What Number Is 10,000 Less Than 337,676
stepladder [879]
Look at the ten thousands place in 337,676.  It is 3. Take one away from it to get the answer.  It is 327,676.
5 0
3 years ago
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What is the mean for the numbers 94,26,76,46,77,66,31, and 88?
Gnesinka [82]

Answer:

68

Step-by-step explanation:

Add all of the numbers together then divide by the amount of numbers there are.

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If a data value in a normal distribution has a negative z-score, which of the following must be true?
mel-nik [20]
Correct Answer:
The data value must be less than the mean.

The formula for the z value is:

z-value = (Data value - Mean) / Standard Deviation

The z-value will be negative when the Numerator of the above expression will be negative. The numerator will be negative only when the Data Value is less than the mean value. For example, for a data value of 5 and mean value 8, the numerator will be -3, and when it will be divided by standard deviation, the resulting z value will be negative.

So, Third option is the correct answer. 
4 0
3 years ago
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What is 75% of 35 feet?
AleksandrR [38]

Answer:

26.25 feet

Step-by-step explanation:

A percentage is simply a ratio of the whole.  If we assume 35 feet to be 100%, or the whole, then we can say the following:

0.75 * 35 == 26.25

Hence, 75% of 35 feet is 26.25 feet.

Cheers.

6 0
3 years ago
) Using the chart, approximate the limit of the function f(x) = sin x/ x as x approaches zero. Note the numbers are in radians:
Rashid [163]

Answer:

1

Step-by-step explanation:

We are given that

f(x)=\frac{sinx}{x}

Numbers are in radians

Substitute x=-1

f(-1)=\frac{sin(-1)}{-1}=0.84

Substitute x=-0.25

f(-0.25)=\frac{Sin(-0.25)}{-0.25}=0.989

Substitute x=-0.01

f(-0.01)=\frac{sin(-0.01)}{-0.01}=0.999

Substitute x=-0.005

f(-0.005)=\frac{sin(-0.005)}{-0.005}=0.999

Substitute x=0.005

f(0.005)=\frac{sin(0.005)}{0.005}=0.999

Substitute x=0.01

f(0.01)=\frac{sin(0.01)}{0.01}=0.999

Substitute x=0.25

f(0.25)=\frac{sin(0.25)}{0.25}=0.989

Substitute x=1

f(1)=\frac{sin(1)}{1}=0.84

Therefore, \lim_{x\rightarrow 0}\frac{sinx}{x}=1

8 0
3 years ago
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