Question

In your biology class, your final grade is based on several things: a lab score, score on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 30% of your total grade, each major test is worth 22.5%, and the final exam is worth 25%. Compute the weighted average for the following scores: 92 on the lab, 85 on the first major test, 90 on the second major test, and 84 on the final exam. Round your answer to the nearest hundredth.

Group of answer choices

86.85

87.58

89.98

85.58

87.98

Answer #1

TOPIC:Weighted average.

Professor Cramer determines a final grade based on attendance,
two papers, three major tests, and a final exam. Each of these
activities has a total of 100 possible points. However, the
activities carry different weights. Attendance is worth 4%, each
paper is worth 9%, each test is worth 14%, and the final is worth
36%.
(a) What is the average for a student with 84 on attendance, 79
on the first paper, 69 on the second paper, 83 on test...

Professor Cramer determines a final grade based on attendance,
two papers, three major tests, and a final exam. Each of these
activities has a total of 100 possible points. However, the
activities carry different weights. Attendance is worth 3%, each
paper is worth 6%, each test is worth 18%, and the final is worth
31%.
(a) What is the average for a student with 75 on attendance, 64
on the first paper, 82 on the second paper, 90 on test...

Professor Cramer determines a final grade based on attendance,
two papers, three major tests, and a final exam. Each of these
activities has a total of 100 possible points. However, the
activities carry different weights. Attendance is worth 6%, each
paper is worth 10%, each test is worth 16%, and the final is worth
26%.
(a) What is the average for a student with 77 on attendance, 86
on the first paper, 68 on the second paper, 63 on test...

Professor Cramer determines a final grade based on attendance,
two papers, three major tests, and a final exam. Each of these
activities has a total of 100 possible points. However, the
activities carry different weights. Attendance is worth 6%, each
paper is worth 10%, each test is worth 15%, and the final is worth
29%.
(a) What is the average for a student with 100 on attendance, 96
on the first paper, 68 on the second paper, 83 on test...

An instructor of a biology class believes the average final exam
score for his biology class was more than 75.
Suppose a sample of 25 was taken and the sample mean he observed
was 78.48 and a standard deviation of 5 points. What is the value
of the test statistic? Report your answer to 2 decimal places.
(hint: to determine which test statistic to calculate, you must
think about what methods should be used. Either one-sample
t-methods, one-sample z-methods or...

Question 1
1. A set of final examination grades in an introductory
statistics course is normally distributed with a mean of 85 and a
standard deviation of 12.
a) What is the probability of getting a grade of 95 on this
exam?
b) What is the probability that a student scored less than 55
and more than79?
c) The probability is 8% that a student taking the test scores
higher than than what grade?
d) If the professor grades on...

Suppose that you are taking a course.
There are two midterms and a final exam. Each midterm impacts 25%
of the course grade while final exam impacts 50% of the grade. The
first and second midterm scores follow a normal distribution with
mean 84 points and the standard deviation of 9 points and mean 85
points and the standard deviation of 6. Assume that the final exam
is also normally distributed with mean 87 and standard deviation of
6 points....

Suppose your statistics professor reports test grades as
z-scores (standard scores), and you received a z-score of 2.2 on an
exam. This means your
Group of answer choices test score is 2.2 points higher than the
mean score in the class. test score is 2.2 points lower than the
mean score in the class. test score is 2.2 standard deviations
lower than the mean score in the class. test score is 2.2 standard
deviations higher than the mean score in...

Biochemistry lab is worth 25% of your total MCB 2000 course
grade. Of that 25%, the weekly laboratory reports account for 45%.
From this 45%, 10% is for participation and 90% if from the actual
laboratory report score. You will be submitting a total of nine
laboratory reports over the course of the semester. Based on this
information, each laboratory report is worth _____________percent
of your total grade for the MCB 2000 course. Please enter your
answer in numeric format:...

Do men score lower on average compared to women on their
statistics finals? Final exam scores of ten randomly selected male
statistics students and ten randomly selected female statistics
students are shown below.
Male: 65 69 91 56 85 82 59 92 81
78
Female: 71 85 99 69 99 65 86 79 64
98
Assume both follow a Normal distribution. What can be concluded
at the the αα = 0.01 level of significance level of
significance?
For this study, we should...

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