6. the percentage of students with less than $10 in their possession is closest to\na. 30%\nb. 35%\nc…

6. the percentage of students with less than $10 in their possession is closest to\na. 30%\nb. 35%\nc. 45%\nd. 60%\n7. which of the following statements about this distribution can be concluded from the graph?\na. the distribution is left - skewed.\nb. the median is between $10 and $20.\nc. the standard deviation of the distribution is more than $60.\nd. the mean is less than the median.\n8. the mean speed of vehicles in the \cars only\ lanes of the new jersey turnpike is 68 mph. the mean speed of vehicles in the \any vehicle\ lanes is 64 mph. what must be true about the mean speed of all vehicles on the turnpike, assuming these are the only types of lanes?\na. it could be any number from 64 to 68 mph.\nb. it must be larger than the median speed.\nc. it must be larger than 66 mph.\nd. it must be 66 mph.

6. the percentage of students with less than $10 in their possession is closest to\na. 30%\nb. 35%\nc. 45%\nd. 60%\n7. which of the following statements about this distribution can be concluded from the graph?\na. the distribution is left - skewed.\nb. the median is between $10 and $20.\nc. the standard deviation of the distribution is more than $60.\nd. the mean is less than the median.\n8. the mean speed of vehicles in the \cars only\ lanes of the new jersey turnpike is 68 mph. the mean speed of vehicles in the \any vehicle\ lanes is 64 mph. what must be true about the mean speed of all vehicles on the turnpike, assuming these are the only types of lanes?\na. it could be any number from 64 to 68 mph.\nb. it must be larger than the median speed.\nc. it must be larger than 66 mph.\nd. it must be 66 mph.

Answer

Explanation:

Step1: Calculate total number of students

Sum up all frequencies: (60 + 40+20 + 5+2+1 = 128)

Step2: Calculate number of students with less than $10

The frequency for the (0 - 10) range is (60)

Step3: Calculate the percentage

Use the formula (\text{Percentage}=\frac{\text{Frequency of students with less than }$10}{\text{Total number of students}}\times100) (\text{Percentage}=\frac{60}{128}\times 100=\frac{6000}{128}\approx46.875%) which is closest to (45%)

Answer:

c. (45%)