Question

In: Statistics and Probability

Identify which of the following statements is true and which is false. 1) _________   For a...

Identify which of the following statements is true and which is false.

1) _________   For a set of numerical data, if the mean is larger than the median, this is evidence of right-skew.

2) _________   Negative values of the standard deviation indicate that the set of values is even less dispersed than would be expected by chance alone.

3) _________   For a set of numerical data, if the mean and the median are of equal value, this is evidence of symmetry in the data.

Solutions

Expert Solution

1.) True.

For right skewness, median <mode < mean

2.) False.

Variance and standard deviation can't take negative values. The minimum value which they can take is 0

3.) True.

For symmetrical data, mean= median= mode.

orchestra answered 2 years ago
Next > < Previous

Related Solutions

Decide which of the following statements are true and which are false. 1. In order for...
Decide which of the following statements are true and which are false. 1. In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the H2(g) sample must be at a higher temperature than the O2(g) sample. 2. At constant temperature, the heavier the gas molecules, the smaller the average kinetic energy. 3. As temperature decreases, the average kinetic energy of a sample of gas molecules increases. 4. At constant temperature, the lighter...
Which of the following statements are true and which are false? a) The magnitude of the...
Which of the following statements are true and which are false? a) The magnitude of the intercept, a, quantifies the steepness of the regression line b) We can apply one-way ANOVA to compare two independent samples. c) In one-way ANOVA we test the following hypotheses: H0: just one group-specific mean is different form the rest H1: all group-specific means are different d)One-way ANOVA cannot be applied if we have a paired-sample design.
1. Identify each of the following statements as true of false and explain your reasoning in...
1. Identify each of the following statements as true of false and explain your reasoning in full sentences. The domain of discourse is the integers. (a) ∃x∀y(y > x) (b) ∀y∃x(y > x) (c) ∃x(x = 0 → x = 1) 2. Write the formal negation of the following statements. Your negation must not contain any explicit negation symbols. (a) ∀x∃y(2 < x ≤ y) (b) ∀y∃x(y > 0 → x ≤ 0) 3. Negate verbally: (a) ”All people weigh...
True or False Determine if the following statements are true or false. _____ 1. A liquid...
True or False Determine if the following statements are true or false. _____ 1. A liquid takes the volume of its container. _____ 2. Particles of amorphous solids have no definite pattern. _____ 3. A beef steak is an example of a crystalline solid. _____ 4. Viscosity causes water to curve upward at the top rim of a glass. _____ 5. There is more gas than any other state of matter in the universe. _____ 6. All states of matter...
Decide which of the following statements are true and which are false. True False  Real gas molecules...
Decide which of the following statements are true and which are false. True False  Real gas molecules behave most ideally at low temperature and high pressure. True False  At constant temperature, the lighter the gas molecules, the smaller the average kinetic energy. True False  At constant temperature, the lighter the gas molecules, the smaller the average velocity. True False  In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the O2(g) sample must be at a...
Decide which of the following statements are true and which are false. 1. As temperature decreases,...
Decide which of the following statements are true and which are false. 1. As temperature decreases, the average kinetic energy of a sample of gas molecules decreases. 2. At constant temperature, the lighter the gas molecules, the smaller the average kinetic energy. 3. At constant temperature, the heavier the gas molecules, the smaller the average velocity. 4. In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the H2(g) sample must be...
Decide which of the following statements are true and which are false. 1. As temperature decreases,...
Decide which of the following statements are true and which are false. 1. As temperature decreases, the average kinetic energy of a sample of gas molecules decreases. 2. At constant temperature, the lighter the gas molecules, the smaller the average kinetic energy. 3. At constant temperature, the heavier the gas molecules, the smaller the average velocity. 4. In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the H2(g) sample must be...
Identify whether each of the following statements is true or false. a. If the demand and...
Identify whether each of the following statements is true or false. a. If the demand and supply for a product both​ increase, the equilibrium quantity of the product must also increase. A. True B. False b. If the demand and supply for a product both​ increase, the equilibrium price of the product must also increase. A. True B. False c. If the demand for a product decreases and the supply of the product​ increases, the equilibrium price of the product...
1) Which of the following statements is true or false. a)Species that are smaller than their...
1) Which of the following statements is true or false. a)Species that are smaller than their prey (host), live in or in association with their host, and either kill their host directly (by consuming it) or kill their host evolutionarily (by preventing it from reproducing) represent an extremely virulent form of parasitism (known as parasitic castrators, parasitoids, or brood parasites). This extremely virulent form of parasitism is most likely to evolve in situations where the host species is large, slow...
Which of the following statements are TRUE or False. (Explain why it’s true or false?) Subtracting...
Which of the following statements are TRUE or False. (Explain why it’s true or false?) Subtracting a positive number from a negative number always gives you a negative number. Subtracting two negative numbers always gives you a negative number. Subtracting a - b is the same as adding a + (-b). A positive number minus a negative number is always a positive number. The difference of a number and its opposite gives you zero. Zero minus a number is the...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT