What is the mode of this data set? 4, 69, 84, 69, 90, 75, 94, 90, 90, 1, 5
nika2105 [10]
Answer:
90
Step-by-step explanation:
90 because it occurs most in the data set.
Answer:
Ratio
Step-by-step explanation:
Voltage measurement of batteries involves ratio level of measurement because it has a significant zero i.e. zero voltage of the battery will mean no voltage. The mathematical operations of multiplication, division, addition and subtraction are meaningful in ratio level of measurement. The mathematical operations of multiplication, division, addition and subtraction on voltage measurement of batteries are meaningful.
Thus, voltage measurement of batteries involves ratio level of measurement.
Answer: 196
Step-by-step explanation:
As per given , we have
Population standard deviation: 
Significance level : 
Using the z-value table , the critical z value for 98% confidence : 
Margin of error : E= 01 lb
Sample size : 
Simplify , we get
Hence, the minimum sample size required for books = 196
7 lines up and down and 3 lines shaded so 3/7 would be your answer
