Answer:
Lowest score needed=4.92
Step-by-step explanation:
Using the standard normal distribution table we find the value of standard normal deviate corresponding to area of 15%
For area of 15% we have Z= -1.04
Thus we have
Applying values we get
Thus lowest score needed = 4.92
Answer
B
Step-by-step explanation:
because it has to be less than according to the word problem and using common sense I know that if there are more than 1 of a number as an answer choice that means that it is most likely the answer
Answer:
Michelle must get an 80 on her next test to keep her average score.
Step-by-step explanation:
Since Michelle got an average score of 80 on two tests, to determine what score she must get on the third test so that her average score for the three tests is the same as the average score for the first two tests, the following calculation must be performed:
X / 2 = 80
X = 80 x 2
X = 160
X x 3 = 80 x 3
X x 3 = 240
X = 240/3
x = 80
So, Michelle must get an 80 on her next test to keep her average score.
Answer:
he academy has 20 students per teacher and need 12 tutors for 120 students
Answer:
Your collage tuition will <em>increase</em> by <em>$1,500 each year.</em>
Step-by-step explanation:
To find the answer we will first turn <em>6% to a decimal</em> by <em>dividing 6 by 100</em> and we get <em>0.06. </em> Now <em>multiply $25,000 by 0.06</em> and we get $1,500. Therefore <em>the answer is $1,500.</em>