If 75 people in the class of 150 get an A on the exam, which of...
If 75 people in the class of 150 get an A on the exam, which of the following statements is definitely true about the situation?
|
None of these statements are true |
||
|
The theoretical probability of an A is 50% |
||
|
Both the theoretical and empirical probability of an A is 50% |
||
|
The empirical probability of an A is 50% |
Homework Answers
Correct option:
The empirical probability of an A is 50%
EXPLANATION:
The empirical probability of an event is the ratio of the number of outcomes in which a specified event occurs to the total number of trials. Here total number of events = 150. The number of outcomes in which a specified event occurs = 75. So the empirical probability = (75/150) X 100 = 50%
12. In a Biology class 85% of students pass the midterm exam. If a student passes...
12. In a Biology class 85% of students pass the midterm exam. If a student passes the midterm exam, there is a 75% they pass the final. If a student does not pass the midterm exam, there is a 55% chance of passing the final exam. a. [3] What is the probability that a student passes both exams? b. [3] If a student passes the final, what is the probability that they passed the midterm exam? C. [3] Are the...
Finn receives a final exam score of 65. The class had a mean of 75 and...
Finn receives a final exam score of 65. The class had a mean of 75 and standard deviation of 10. What percent of students in Finn's class scored lower than him? 84%,50%,34%,16%
An algebra teacher was interested to study the final exam scores for his class of 28...
An algebra teacher was interested to study the final exam scores for his class of 28 students. He collected the following information. information Q1 Min Median Q3 Max n S 28 76.3 3.51 95 45 75.2 89.4 84.5 Which of the following is the proper interpretation? About 25% of students got the scores greater than 75.2. About 50% of students got the scores between 84.5 and 95. None of these answers. About 25% of students got the scores of 75.2.
you walked into class to discover you had a statistics exam for which you had not...
you walked into class to discover you had a statistics exam for which you had not prepared. because the test is multiple choice with 5 possible answers for each question with only one of those choices being correct, you decide to take your chances and guess. the test has 20 questions: A) what is the probability that you will get 5 out of 20 questions correct? B) what is the probability you will get no questions correct? c) what is...
The final exam scores in a statistics class were normally distributed with a mean of 70...
The final exam scores in a statistics class were normally distributed with a mean of 70 and a standard deviation of 2. If you select a student at random, what is the probability that he scored between a 66 and a 74? A.2.5% B.50% C. 68% C. 95% D. none of the above
Suppose that a student in this class uses their personalized class data set to test the...
Suppose that a student in this class uses their personalized class data set to test the hypothesis that more than 50% of the people in this class are in Life Sciences, and rejects the null hypothesis at the 2% significance level. Consider the following statements. (i) If another student in this class tested the same hypothesis with their personalized class data set, using the same significance level, then that student would also reject the null hypothesis. (ii) The proportion of...
Consider the following set of miles that 25 people drive to work: 75 80 220 150...
Consider the following set of miles that 25 people drive to work: 75 80 220 150 200 60 90 100 150 150 75 85 70 100 120 65 85 90 60 65 120 100 115 115 80 Determine appropriate bins, and construct a frequency table. Include columns for relative frequency and cumulative frequency, and interpret the cumulative frequency for this case.
In a "Probability and Statistics for CS" class with 160 students enrolled in it, by the...
In a "Probability and Statistics for CS" class with 160 students enrolled in it, by the time of the final exam, 60% of the students have mastered discrete probabilities, 75% have mastered continuous probabilities, and 50% have mastered both. For a student to pass the class with at least a C, the student must be able to use at least one type of probabilities. How many students passed the class? (Probability Theory)
For an exam given to a class, the students' score ranged from 30 to 90, with...
For an exam given to a class, the students' score ranged from 30 to 90, with a mean of 60. Based on the Empirical Rule for symmetric and bell-shapped data, which of the following is the most plausible value of the standard deviation? A. 0 OB. -5.3 C. 3 D. 56 E. 12
In class A, the mean score on a math exam was 85. In class B, the...
In class A, the mean score on a math exam was 85. In class B, the mean score on the same test was 75. There were 30 students in each class. The scores in class A ranged from 83 through 87, whereas the score. in class B ranged from 45 through 100. Which of the following is an appropriate conclusion that can be drawn from the information given above? res The standard deviation of scores was higher in class B....
12. In a Biology class 85% of students pass the midterm exam. If a student passes the midterm exam, there is a 75% they pass the final. If a student does not pass the midterm exam, there is a 55% chance of passing the final exam. a. [3] What is the probability that a student passes both exams? b. [3] If a student passes the final, what is the probability that they passed the midterm exam? C. [3] Are the...
An algebra teacher was interested to study the final exam scores for his class of 28 students. He collected the following information. information Q1 Min Median Q3 Max n S 28 76.3 3.51 95 45 75.2 89.4 84.5 Which of the following is the proper interpretation? About 25% of students got the scores greater than 75.2. About 50% of students got the scores between 84.5 and 95. None of these answers. About 25% of students got the scores of 75.2.
In a "Probability and Statistics for CS" class with 160 students enrolled in it, by the time of the final exam, 60% of the students have mastered discrete probabilities, 75% have mastered continuous probabilities, and 50% have mastered both. For a student to pass the class with at least a C, the student must be able to use at least one type of probabilities. How many students passed the class? (Probability Theory)
For an exam given to a class, the students' score ranged from 30 to 90, with a mean of 60. Based on the Empirical Rule for symmetric and bell-shapped data, which of the following is the most plausible value of the standard deviation? A. 0 OB. -5.3 C. 3 D. 56 E. 12
In class A, the mean score on a math exam was 85. In class B, the mean score on the same test was 75. There were 30 students in each class. The scores in class A ranged from 83 through 87, whereas the score. in class B ranged from 45 through 100. Which of the following is an appropriate conclusion that can be drawn from the information given above? res The standard deviation of scores was higher in class B....
Most questions answered within 3 hours.
-
New Air Heating and Cooling, manufactures furnaces and central
air units. The company pride itself on...
asked 9 seconds from now -
A coach uses a new technique to train gymnasts. Seven
gymnasts were randomly selected and their...
asked 1 hour ago -
While rotating the tires on your car you notice a rock [mass =
0.1 Kg] stuck...
asked 3 hours ago -
Using MARS simulator, write MIPS programs according to
the following scenarios: Receive a positive integer number...
asked 5 hours ago -
An object in front of a concave mirror has a real image that is
11.5 cm...
asked 6 hours ago -
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 7 hours ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 8 hours ago -
In a study of the accuracy of fast food​ drive-through orders,
Restaurant A had 257 accurate...
asked 8 hours ago -
Identify and describe in detail the four categories of
institutions that could be included in a...
asked 8 hours ago -
In python
class Customer:
def __init__(self, customer_id, last_name, first_name, phone_number, address):
self._customer_id = int(customer_id)
self._last_name =...
asked 8 hours ago -
What is an example of a limitation in implementing a new
ERP system and how it...
asked 8 hours ago -
In a section of 9.7cm of an artery with a radius of 2.6mm there
is a...
asked 8 hours ago