Draw a bar model that shows how the number of hours in March compares with the number of hours in February of this year.
2 answers:
Okay so first we need to find how many days are in March and February. March has 31 days and because this year was a leap year February has 29 days.
The next step is to convert days to hours.
March: 31x24=744
February: 29x24=696
Now its time to graph
The next step is to convert days to hours.
March: 31x24=744
February: 29x24=696
Now its time to graph
Answer:
Firstly we calculate the number of hours of both months.
This year is not a Leap year. So, the number of days of February is 28
and the number of days of March is 31
So, Number of hours February has 28 × 24 = 672 hours
and, Number of hours March has 31 × 24 = 744 hours
The bar graph is the best visual representation when we have categorical data. It is drawn by using a rectangular bar where the length of the bar represents height or frequency.
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Answer: a) (176.76,172.24), b) 0.976.
Step-by-step explanation:
Since we have given that
Mean height = 174.5 cm
Standard deviation = 6.9 cm
n = 50
we need to find the 98% confidence interval.
So, z = 2.326
(a) Construct a 98% confidence interval for the mean height of all college students.
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Error would be
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