Length. : 3. 4. 6. 8. 9.
Cost ($) : 24. 32. 48. 64. 72
Answer:
The percentage of the students scored higher than 89% is 15.87%
Step-by-step explanation:
we are given
The average test scores for a particular test in algebra was 84
so, mean is 84
a standard deviation of 5
so,
we have
x=89
now, we can use z-score formula
now, we can plug values
now, we can use calculator
and we get
So,
The percentage of the students scored higher than 89% is 15.87%
The ratio of the geeses to ducks will be 11:12 because there are 11 geeses and 12 ducks :)
The numbers are a squence.