Mark played video games for 1 hour. The circle graph shows the different types of video games he played. Based on the graph, abo
ut how many minutes did Mark play the racing game?
1 answer:
The complete question in the attached figure
<span>observing the graph we can say that the racing game is approximately 25% of the total
</span>so
if 1 hour is ----------------------> 100%
X-----------------------------25%
x=25/100------> 1/4=0.25 hours
convert to minutes
0.25*60---------> 15 minutes
the answer is 15 minutes
<span>observing the graph we can say that the racing game is approximately 25% of the total
</span>so
if 1 hour is ----------------------> 100%
X-----------------------------25%
x=25/100------> 1/4=0.25 hours
convert to minutes
0.25*60---------> 15 minutes
the answer is 15 minutes
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z = (x - mean)/Standard deviation
From the information given,
mean = 68
standard deviation = 2.5
The probability that the height of a selected adult is between 63 and 73 is expressed as
For x = 63,
z = (63 - 68)/2.5 = -2
Looking at the normal distribution table, the probability corresponding to the z score is 0.02275
For x = 73,
z = (73 - 68)/2.5 = 2
Looking at the normal distribution table, the probability corresponding to the z score is 0.97725
Therefore,
Thus, the percentage of men are between 63 and 73 is
0.9545 * 100 = 95.45%
Rounding up to the nearest percentage, the answer is 95%