Descriptive statistics
1. Here we can see that there is a grade of 740 on a scale of 0-100. So it is an outlier.
Since we don't have any option of estimating the actual value of the outlier point, we have to ignore it i.e. remove it from the data set.
2. We get the stem plot as:
3. From the given data we can get that:
Mean= 80.11; median= 78 & mode= 75.
Thus here mean > median > mode.
So the distribution is positively skewed.
4. The interpretation is:
In math she scored higher that 80% of the students and in reading she scored higher than 76% of the students in the class.
i need help on question 3 to 22 please. Midterm ex review. MATH 101 Use the...
the
full question is asking this ip on top i need 5 6 & 7
5. Assuming you draw two marbles in a row without putting one back, what is the probability that you draw a blue and a green marble? 6. Assuming you draw two marbles in a row without putting one back, what is the probability that you do not draw a blue and a green marble? 7. If you draw two marbles, what is the probability that...
PLEASE EXPLAIN. I have no idea what statistical software to
use!
The following data was collected to explore how the average number of hours a student studies per night and the student's GPA affect their ACT score. The dependent variable is the ACT score, the first independent variable (x1) is the number of hours spent studying, and the second independent variable (x2) is the student's GPA. Effects on ACT Scores Study Hours GPA ACT Score 2 2 22 2 2...
I need help with question 2 please
Lauren is a waitress at the Red Rose Café. Her Y-T-D earnings as of Septem are $22,800. Please answer the following question using the following information. FICA OASDI-6.2% on the first $128,400 FICA MEDICARE- 1.45% 22,800 SIT-7% FIT-See Table $25-given by teache Round to the nearest cent. 1. Red Rose requires that all of its wait staff report their tips daily at the end of their shift. For the week ended October 19...
May i get help with question 7 and 8. And will you please make
sure i did the rest correctly. If you zoom in you can see
questions. Thank you sooooo much.
Answer: 30 Dogs sleep an mean of 13 hours a night with a standard deviation of 1 hour (roughly, as per this article). Things are little more hectic at my house. Penny, lovingly referred to as demon puppy, barely sleeps. At best, she sleeps 10 hours a day...
Hello experts,
I need help answering the following question and its
sub-questions please. I use MINITAB for my data. Please show your
work to make it easier for understanding! will
upvote!
Q-1) 7 marks Confidence interval for μ when σ 1s known. The duration of baseball games in the major league in the 2010 and 2011 scasons is uniformly distributed between 2.76 and 3.22 hours inclusive. We would like to simulate 50 samples of 30 gane duration time and construct...
Need help with questions 7 and 10.. and if I got any of 8 or 9
wrong
1.2 Data, Sampling, and Variation in Data and Sampling 6 Number of times per week is what type of data? a qualitative(categorical)y 6guantitative discrete, c quantitative continuous information to answer the next four exercises: A study was done the duration (amount of time) of residents using a local park in San Antonio, Texas was selected randomly, and then the resident of every eighth...
ㅃ cnoner 3-2010 Sprint × ed oumy.ecuweba g to the Favontes Bar folder, Or import from another browser. Import favorites Home Chapter 3 d P(A). PLE) P(F). d P(N). d P(O) ind P(S) 8. What is the probability of drawing a red card in a standard deck of 52 cards? 19. What is the probability of drawing a club in a standard deck of 52 cards? 20. What is the probability of rolling an even number of dots with a...
Can someone help me with these, I need help understanding.
ved at the post office is exponential meter 3 minutes. Use this information amount of time a customer waits to be served at - cation parameter 6 minutes and scale parameter 3 to answer questions 3 and 4. 3. What is the expected value and variance of customer exponentially distributed with is information and the next page of customer wait time? A+B (MEN) Ex) = -Al Blog12) Vor=p² 6/10 =...
4.
In a study, the following equation for predicting a child’s
metabolic rate (in 100 kcal/24h) (Y) given his/her weight (in
kilograms) (X) is found: Y = 0.4X + 0.89. The RMS for the
prediction is 1.144 (in 100 kcal/24h). What is the probability that
a child that weighs 15 kilograms has metabolic rate exceeding
8?
Question 4 options:
A)
0.834
B)
Can’t tell without the data
C)
0.144
D)
0.166
E)
0.970
5.
Suppose a study predicting calories (Y)...
What is the relationship between the amount of time statistics students study per week and their test scores? The results of the survey are shown below. Time 16 14 15 6 14 15 6 Score 100 89 100 68 99 100 78 x-values y-values Find the correlation coefficient: r=r= Round to 2 decimal places. The null and alternative hypotheses for correlation are: H0:H0: ? ρ r μ == 0 H1:H1: ? μ r ρ ≠≠ 0 The p-value is: (Round to four decimal...