Fiscal policy is action taken by ______________ to stabilize the economy.
32 He + 21 H
A solution that contains 12.6 g of a nonvolatile non-dissociating solute in 400 g of benzene freezes at 3.6°C. The normal freezing point of benzene is 5.5°C. What is the molar mass of the solute? (Kf for benzene = 4.96°C kg/mole)
A solution of salt water raised the boiling point of water from 100°C to 102.5°C. What is the molality of the solution? Assume Kb of water is 0.51°C/m.
The individual’s demand curve for a commodity represents a maximum boundary of the individual’s intentions True or false. Explain
A box contains 6 defective bulbs and 10 functional bulbs. If 4 bulbs are to be chosen at random. what is the probability that there are 2 defective bulbs and 2 functional bulbs selected?
A study reports that 5% of adults are afraid to be home alone at night. If 20 people are randomly selected, what is the probability at least 3 of them are afraid to be home alone at night?
Suppose a firm producing coffee provides you with the following information:
Price = R100
Quantity = 150 units of coffee
Cost of production = R9 500
7.3.1. Calculate the total revenue of the firm. (1)
7.3.2. Is the firm currently making a profit or a loss? Explain. (2)
A Random sample of 60 grade 11 student ages is obtained to estimate the mean ages of all grade 11 students.Suppose the sample mean is 17.3 and the population variance is 18,
1. What is the point estimate of the population parameter?
2. Find the 95% confidence interval for the population parameter?
3. Find the 99% condence interval for the population parameter?
A Random sample of 60 grade 11 students ages is obtained to estimate the mean ages of all grade 11 students. Suppose the sample mean is 17.3 and the population variance is 18,
1. What is the point of estimate of the population parameter?
2.Find the 95% confidence interval for the population parameter?
3.Find the 99% confidence interval for the population parameter?