39 Answered Questions for the topic Statics

Statics Statistics

06/20/20

what is the probability that at least one then=m has been vaccinate?
in a large population, 52% of the people have been vaccinated. if 5 people are randomly selected, what is the probability that at least one of them has been vaccinate?
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05/01/20

Maximum deflection of a beam
Imagine having a equation of a beam as follows and we have to solve this for x. Note that the [] square brackets denote terms involving Macaulay's notation.How do we solve for x when Macaulay's... more
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04/14/20

statistics help
Assume that when adults with smartphones are randomly​ selected, 49​% use them in meetings or classes. If 7 adult smartphone users are randomly​ selected, find the probability that at least 5 of... more
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Statics Physics

04/09/20

Wind Sculpture (Involves statics, frequency)
Your friend, an artist, has been thinking about an interesting way to display a new wind sculpture she has just created. In order to create an aural as well as visual effect, she would like to use ... more
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Statics Probability

04/08/20

Suppose you play a game in which you are dealt one card from a standard deck of 52 cards; you win $10 if the card is an ace, and lose $1 otherwise. What is the approximate variance of this game?

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03/03/20

The following data are from a repeated-measures study examining the effect of treatment by measuring a group of n=6 participants before and after they receive a treatment.

Participants Before Treatment: A7, B2, C4, D5, E5, F3Participants After Treatment: A8, B9, C6, D7, E6, F8a. Calculate the difference scores and Md . b. Compute SS, sample variance, and estimated... more
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03/01/20

Deflection/stress/torque in a horizontal crane
I made a google drive link to the problem (as I cannot paste images on here): https://drive.google.com/file/d/1r9vwwLlm0KNfPZJfgtfgu6KW6wBKw9Ym/view?usp=sharingHow would you set up this problem? If... more
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Statics Physics

01/14/20

Static Equilibrium Question
Question Description:Three cables are connected at a central point B. The first cable runs from point A to point B at an angle 50˚ above the horizontal. Another cable runs from point B to point... more
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01/04/20

Building a bride out of cardboard, straws and string
​Hey, I have an assignment in my physics class where I have to build a bridge out of: a 20cm x 8cm piece of cardboard, 10 straws, And 3 meters of string. How it works:The bridge will be placed on 2... more
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10/23/19

Chi Square Test.
A quality control manager regularly samples 20 items from a production line and records the number of defective items x. The results of 100 such samples are given in Table 1 below.x: 0, 1, 2 ,3, 4... more
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08/27/19

Probability of several consecutive drawn random samples of a standard normal distribution exceeding certain value.
Hi,I have trouble figuring out the following:I have a standard normal distribution (µ = 0, σ² = 1) and now, as an example, draw 3 random independent samples.What is the chance, that the sum of... more
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Statics

04/12/19

Math statistic work

A survey indicates that 40% of women in U.S. consider reading their favorite leisure - time activity. You randomly select 10 U.S. women And ask them is reading their favorite leisure- time... more
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Statics Physics Urgent

04/11/19

A 500-N tightrope walker stands at the center of the rope. If the rope can withstand a tension of 1400 N without breaking, what is the minimum angle the rope can make with the horizontal?

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Statics Sat Math

02/27/19

chebyshev theorem
Americans spend an average of 3 hours per day online. If the standard deviation is 31 minutes, find the range in which at least 88.89% of the data will lie. Use Chebyshev’s theorem.... more
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