In a large population, 65% of the households have cable tv. A simple random sample of 256 households is to be contacted and the sample proportion computed. What is the probability that the sampling distribution of sample porportions is less than 59%?
In a group of 415 sophomores: 217 are taking accounting;170 are taking mathematics;131 are taking biology;48 are taking math and biology;25 are taking accounting and biology;82 are taking math and accounting;10 are taking all three subjects.Draw a Venn Diagram, then answer the following questions:1. How many in the group are taking none of the three subjects?2. How many are taking accounting but neither math nor biology?
In a large class, the midterm had an average of 50 points with an SD of 22. The final scores averaged out to 60 with an SD of 20. The correlation between midterm and final scores was 0.60. The scatter diagram was football-shaped. Of the students who scored around 50 on the midterm, about what percentage were in the top 25% of the class on the final?
In a group of 35 people what is the probability of at least 2 people will share the same birthday?
In a group of 35 people what is the probability of at least 2 people will share the same birthday?Solution:P (at least two people will share a birthday) = 1 365! / (365^35 * (365 35)! = 1…
M and V
V? [CHECK ALL THAT APPLY]
A. The events M
M and V
V are disjoint.
B. P(M given V)
P(M given V) is equal to P(M)
P(M).
C. P(M and V)
P(M and V) is equal to P(M)×P(V)
P(M)×P(V).
D. P(M given V)
P(M given V) is equal to P(V)
P(V).
E. The events M
M and V
V are not disjoint.
F. P(V given M)
P(V given M) is equal to P(V)
P(V).
In a laboratory, Nakisha mixes sodium hydroxide solution with an indicator called phenolphthalein. When combined, they create a pink solution. Nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. How could she use the scientific inquiry process to explore it further? Check all answers that apply.
In a lab experiment, 70 bacteria are placed in a Petri dish. the conditions are such that the number of bacteria is able to double every 28 hours. how many bacteria would there be after 4 hours, to the nearest whole number?
In a job order costing system a business has to apply overhead to jobs. Why can’t a business use actual costs? There are two reasons why a company should use long time periods to accumulated actual costs. What are the two reasons?
In a hypothetical world, between last year and this year, the CPI in the United States rose from 110 to 120 and the CPI in Russia rose from 100 to 110. The United States’ currency unit, the Dollar, was worth $1.00 (per Canadian dollar) last year and is worth $0.80 (per Canadian dollar) this year. Russia’s currency unit, the Ruble, was worth $23.38 (per Canadian dollar) last year and is worth $23.29 (per Canadian dollar) this year.a) Find the percentage change from last year to this year in the United States’ nominal exchange rate with Russia (measured as # of Dollars/1 Ruble).NOTE: Please keep as much precision as possible throughout your calculations and round off your final answer to two decimal places.
In a hypothetical economy, high-power money is 2000 MUC and the money supply is 6000 MUC. Currently deposit ratio is estimated to be 0.2. The central bank sells government securities worth 500 MUC in the open market. Even after the open market sale, if the central bank wants to maintain the money supply at the same level, the reserve ratio should be
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