Answer:
He performed better in the 800 m race
Step-by-step explanation:
Obtain the standardized score for each event :
Zscore = (score - mean) / standard deviation
1000 meter :
Mean = 4.5 ; Standard deviation = 0.75 ; x = 4.1
Zscore = (4.1 - 4.5) / 0.75
Zscore = - 0.4 / 0.75 = - 0.5333
800 meter :
Mean = 3.2 ; Standard deviation = 0.4 ; x = 3
Zscore = (3 - 3.2) / 0.4
Zscore = - 0.2 / 0.4 = - 0.5
-0.5 > - 0.533
Hence, he performed better in the 800 m race
77 percent of 149 is 114.73
Answer:
Step-by-step explanation:
when you draw a line through both it show that the are parallel and will never touch.
Answer:
Mode is the most common
Median is the middle number when put in order of smallest to biggest
Mean is where you added them all up and divide by how many there is
Step-by-step explanation:
5, 7, 6, 7, 10
The median of these numbers is 7
The mode is 7
The mean is also 7 (5+6+7+7+10=35 35÷5=7)
