There are 5 black, 3 white, and 4 yellow balls in a box (see picture below)....
A bag contains 6 black balls,5 red balls and 4 white balls,if 3 are selected at random without replacement determine the probability that (1)all 3 are black (2)all 3 are red (3)2 are black and 1 white (4)at least 1 of each colour is selected.
There are 3 white, 3 red and 5 black balls in a box. By chance, three balls are taken out from the box. The person wins 1 dollar when taking out a white ball but loses 1 dollar when taking out a red ball. X is an event, describing the amount of money that was won (lost) in one try. What values does X have and what are the probabilities of those values? What is the probability that the money...
the answer is also not 3/20 Five jars contain black and white balls (see figure below). O 2 W O 2 W O O 3 W O 3 W • • 10 B • • 1 B III Ajar is selected at random and a ball is picked from it. Suppose a white ball was obtained. What is the probability that it was selected from Jar 5? 0.067 Please review Bayes' theorem. You need to compute P(Jar 5| White).
Probability 5. The discrete random variable Z has the following probability distribution 2 0.2 4 P(Z) 0.1 0.25 0.05 0.3 Which of the following is FALSE? A) P(Z < 2) 0.55 B) P(Z 2 4)- 0.45 C) P(Z 4)=0.9 D) P(Z3)-0.05 6. A random sample of 100 first-year students was selected to determine the average GPA they achieved at a university. A 95% confidence interval for the average GPA of the first-year students was 5.2 < H < 6.8 based...
#8. 10.1 Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the critical values of r using a = 0.05. Is there sufficient evidence to conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals? Overhead Width 7.0 7.5 9.7 8.8 8.4 Weight 106...
1. A section of the printout for a multiple regression model attempting to predict results in an RMIT maths subject is shown below. The variables ATAR score, MathsReady test score, attendance at SLC Drop-in and hours of study per week were considered. The 95% confidence interval for the intercept is [1.24, 18.22] or 1.24 - 18.22. A variable is considered a significant predictor if the 95% confidence interval does not contain zero. Which of the variables ‘ATAR score’, ‘MathsReady test...
Economics- Probability and stats 1. Find the value of the 75th percentile of the following array: 5,10,43,9,8,6,2,5 A) 8 B) 9 C) 9.5 D) 8.5 2. Two independent events, A and B, where the P(B) is 0.44 and the probability that A does not occur or B occurs is 0.74. What is the probability that event A occurs? A) 0.3 B) 0.54 C) 0.46 D) 0.28 3. Which of the following is FALSE? A) B) A sampling distribution is a...
The first 4 are answered, but I need help on the other 16. Respectfully, please don't answer if you can't help with all 20. QUESTION 1 101-010) Questions 1-10 are designed to review some statistical concepts as well as to help you understand the benefits from diversification. Assume that there are two assets (A and B) and there are four possible future scenarios. The four scenarios and their probabilities are shown in the following table. The last two columns show...
i need a help pleassssse? 5. What is the probability that the sum of the numbers on two dice is even when they are rolled? 6. What is the probability that a card selected at random from a standard deck of 52 cards is an ace or a heart? What is the probability that a positive integer not exceed- 100 selected at random is divisible by 5 or 7? nd the probability of winning a lottery by selecting the t...
t the Wackes in ersed from e with mantude of 15 The Black I haa t he block 2 has mass and Neck has a mass Calculate c t of inte friction between black and a (A) 0.34 B) 0.45 (C) 0.87 (D) 0:54 0.99 14 The work of a given force has its maximum positive value when CA) The vector of displacement and force are at the same direction B) The vector of displacement and force are at the...