The primary aim of a study by Carter et al. was to investigate the effect of the age at onset of bipolar disorder on the course of the illness. One of the variables investigated was family history of mood disorders. Table 2 shows the frequency of a family history of mood disorders in the two groups of interest (Early age at onset defined to be 18 years or younger and Later age at onset defined to be later than 18 years.). Table 2: Frequency of Family History of Mood Disorder by Age Group Among Bipolar Subjects Family History of Mood Disorders Early = 18(E) Later > 18(L) Total %3D Negative (A) AC AA AC+AA Unipolar (B) Bipolar (C) Unipolar & Bipolar (D) DA CC DA CC AB CB AB+CB BC AD BC+AD Total AC+DA+AB+ BC AA+CC+CB+AD Where A, B, Cand D are 1", 2ª, 3“ and 4º digits of your SAP IDs. i.e. if SAP ID=12345, then A=1, B=2, C=3 and D-4. Page 2 of 3 (a) What is the probability that a person picked at random from the subjects will be Early (E) and will be a person who has no family history of mood disorders (A)?

The primary aim of a study by Carter et al. was to investigate the effect of the age at onset of bipolar disorder on the course of the illness. One of the variables investigated was family history of mood disorders. Table 2 shows the frequency of a family history of mood disorders in the two groups of interest (Early age at onset defined to be 18 years or younger and Later age at onset defined to be later than 18 years.). Table 2: Frequency of Family History of Mood Disorder by Age Group Among Bipolar Subjects Family History of Mood Disorders Early = 18(E) Later > 18(L) Total %3D Negative (A) AC AA AC+AA Unipolar (B) Bipolar (C) Unipolar & Bipolar (D) DA CC DA CC AB CB AB+CB BC AD BC+AD Total AC+DA+AB+ BC AA+CC+CB+AD Where A, B, Cand D are 1", 2ª, 3“ and 4º digits of your SAP IDs. i.e. if SAP ID=12345, then A=1, B=2, C=3 and D-4. Page 2 of 3 (a) What is the probability that a person picked at random from the subjects will be Early (E) and will be a person who has no family history of mood disorders (A)?

Name: Statistics The primary aim of a study by Carter et al. was to investig
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Description: Statistics The primary aim of a study by Carter et al. was to investigate the effect of the age at onset ofbipolar disorder on the course of the illness. One of the variables investigated was family historyof mood disorders. Table 2 shows the frequen

MATLAB: An Introduction with Applications

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Concept explainers

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.

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Question

Statistics

The primary aim of a study by Carter et al. was to investigate the effect of the age at onset of
bipolar disorder on the course of the illness. One of the variables investigated was family history
of mood disorders. Table 2 shows the frequency of a family history of mood disorders in the two
groups of interest (Early age at onset defined to be 18 years or younger and Later age at onset
defined to be later than 18 years.).
Table 2: Frequeney of Family History of Mood Disorder by Age Group Among
Bipolar Subjects
Family History of
Mood Disorders
Early = 18(E)
Later > 18(L)
Total
Negative (A)
AC
AA
AC+AA
Unipolar (B)
DA
CC
DA+CC
Bipolar (C)
AB
СВ
AB+CB
Unipolar &
Bipolar (D)
Total
BC
AD
BC+AD
AC+DA+AB+BC
AA+CC+CB+AD
Where A, B, Cand D are 1", 2d, 3d and 4 digits of your SAP IDs. i.e. if SAP ID=12345, then A=1, B=2, C=3
and D=4.
Page 2 of 3
(a) What is the probability that a person picked at random from the subjects will be Early (E)
and will be a person who has no family history of mood disorders (A)?

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