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What else can I help you with?
The histogram of a sample should have a distribution shape that is skewed. Is this true or false?
False. It can be skewed to the left or right or be symmetrical.
A grouped frequency distribution is used when the range of data values is relatively small. True or false?
False. When the range is large you would use a grouped frequency distribution.
How the symmetric distribution is always normal?
The statement is false. The binomial distribution (discrete) or uniform distribution (discrete or continuous) are symmetrical but they are not normal. There are others.
Data are always numerical measurements true or false?
False. For example; your name is ___________.
Is a distribution symmetrical if the tails on both ends of the density curve that represents it are not close to identical?
false
The histogram of a sample should have a distribution shape that is skewed. Is this true or false?
False. It can be skewed to the left or right or be symmetrical.
The F-distribution is symetrical around mean zero True or False?
The F-distribution is either zero or positive, so there are no negative values for F. This feature of the F-distribution is similar to the chi-square distribution. The F-distribution is skewed to the right. Thus this probability distribution is nonsymmetrical.
True or false The distribution of income should be left to the market is an example of a positive economic statemente?
True
True or false A graph that is skewed neither left nor right is symmetric?
This is true
Is it true or false that electrons are distributed randomly throughout the positively charged of the atom?
False. Electrons are not distributed randomly; they occupy specific energy levels or orbitals around the nucleus of an atom, which contains positively charged protons. The arrangement of electrons is governed by quantum mechanics, leading to a defined structure rather than a random distribution.
In a negatively skewed dist. following statements are true except?
In a negatively skewed distribution, the mean is typically less than the median, and the median is less than the mode. This results in a tail that extends longer to the left. Therefore, any statement claiming that the mean is greater than the median or that the mode is less than the median would be false. Thus, one must be careful to identify which statements accurately reflect the characteristics of negatively skewed distributions.
True or false A Proton is positively charged and found in the orbitals?
Protons are positively charged but found in the NUCLEUS (so false). Electrons are found in the orbitals (but are negatively charged)
True or False A sampling distribution is a probability distribution for a statistic?
The statement is true that a sampling distribution is a probability distribution for a statistic.
A grouped frequency distribution is used when the range of data values is relatively small. True or false?
False. When the range is large you would use a grouped frequency distribution.
Is this qeustion true or false the movement of the continents has had little impact on the distribution of species?
false
Is it true or false that in a parallelogram the opposite angles are complementary?
Generally false. In a parallelogram, the opposite angles are equal. They could be complementary in a highly skewed parallelogram in which one angle is 45 degrees.
When an atom gains electrons it becomes positively charged true or false?
False. If an atom gains or loses electrons, the result is called an ion, not a molecule.
