Question

- Let the sample data and its corresponding distributions be given as follows:

values (x) |
frequency (f) |

0 |
3 |

2 |
4 |

4 |
1 |

answer the following, find (a) range of the data

(b) the median of the data

(c)mean of the data

(d) variance of the data

(e) **Standard error** of
the sample mean

- Let the sample data and its corresponding distributions be given as follows:

values (x) |
frequency (f) |

0 |
3 |

2 |
4 |

4 |
1 |

answer the following, find (a) range of the data

(b) the median of the data

(c)mean of the data

(d) variance of the data

(e) **Standard error** of
the sample mean

- Let the sample data and its corresponding distributions be given as follows:

values (x) |
frequency (f) |

0 |
3 |

2 |
4 |

4 |
1 |

answer the following, find (a) range of the data

(b) the median of the data

(c)mean of the data

(d) variance of the data

(e) **Standard error** of
the sample mean

Answer #1

Please rating the answer. Thank you!

1. for the given frequency distribution below
find the mean, median and standard deviation
X
f(X)
2
4
3
7
4
5
5
7
6
5
7
2
a) List the relative and cumulative relative
frequency for each interval the table above
2. Identify the level of the following
variables a. heights of male students b. the first three finisher
of a car race c. temperature in fahrenheit. d. the types of cars in
a parking lot
3. find the...

MARIGINAL AND JOINT DISTRIBUTIONS
The joint distribution of X and Y is as
follows.
Values of Y
1
0
P{X=x}
Values of X
1
0.1
0.2
0.3
0
0.3
0.4
0.7
P{Y=y}
0.4
0.6
1.0
a. Find the marginal distribution of X and
Y.
b. Find the conditional distribution of X given y =
1
c. Compute the conditional expectation of Y given X=1,
E{Y=y|X=1}

A graduate student obtains data from a sample of children with
ADHD. The data represent level of activity where higher scores
indicate more activity and are as follows:
31, 25, 38, 35, 31.
a) Find the median.
b) Find the mean.
c) Find the range.
d) Find the standard deviation.
e) Find the z-score for child 1.
f) Find the z-score for child 2.
g) For child 4, find the standardized score with a
mean of 55 and variance of...

A random sample of 20 women yields the given data on the
number of minutes of exercise during the week of March 12 –
18.
10.0 90.6 48.5 50.4 57.4 99.6 0.0 5.0 0.0 0.0
5.0 2.0 10.5 5.0 47.0 0.0 5.0 54.0 0.0 48.6
Compute the Mean, Median, Range, Standard Deviation and
Variance for this set of data.
a) Mean
b) Median
c) Range
d) Standard Deviation
e) Variance

Consider two sample means distributions corresponding to the
same x distribution. The first sample mean distribution is based on
samples of size n=100 and the second is based on sample of size
n=225. Illustrate the effect of standard error on each set, and
show how the difference in sample size would either increase to
decrease the numeric value for each grouping. Illustrate your
examples for each answer.

Consider the following set of sample data, and find the
following (note: if you are using TI 83 to find these values, you
need to write down the formulas that you should have used)
19
12
9
19
0
4
3
14
5
5
24
2
5
7
17
(a). Mean
(b). Median
(c). Mode
(d). Standard Deviation
(e). Variance
(f). Find the z-score for 14.
(i). Construct a Box-whisker plot for the data
(j). Construct a frequency distribution Table....

Let X be a random variable with pdf f(x)=12,
0<x<2.
a) Find the cdf F(x).
b) Find the mean of X.
c) Find the variance of X.
d) Find F (1.4).
e) Find P(12<X<1).
f) Find PX>3.

1, For the sample shown in the frequency distribution table, the
median is ---Select--- 3, 3.5, 4, 15/2 =
7.5 .
X
f
5
1
4
5
3
4
2
1
1
1
2, For the sample shown in the frequency distribution table, the
mode is ---Select--- 3 3.5 4 5 .
X
f
5
1
4
5
3
4
2
1
1
1
3, Find the mean, the median, and the mode for the set of scores
in the frequency distribution histogram...

2. Given the following data, calculate the mean, median, mode,
midrange, standard deviation, and variance.
14.35, 17.22, 18.90, 20.02, 34.43, 12.85, 18.49, 7.62, 19.93
(a) Mean
(b) Median
(c) Mode
(d) Range
(e) Standard Deviation
(f) Variance

2. Let X be a continuous random variable with pdf given by f(x)
= k 6x − x 2 − 8 2 ≤ x ≤ 4; 0 otherwise.
(a) Find k.
(b) Find P(2.4 < X < 3.1).
(c) Determine the cumulative distribution function.
(d) Find the expected value of X.
(e) Find the variance of X

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 17 minutes ago

asked 43 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago