189 Answered Questions for the topic biostatistics

Biostatistics Math Science Biology

11/05/20

Is this sentence correct ?
If you decrease the risk of a type I error, the risk of a type II error is increased
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Biostatistics Science Biology Chemistry

11/05/20

Which of the following about isoenzymes are true ?
A.) They have the same primary sequenceB.) They localise in different tissuesC.) Isoenzymes have different isoelectric pointsD.) They remain unaltered in health and diseasesI believe the answer is... more
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Biostatistics Science Biology Chemistry

11/05/20

Can you please quickly help me?
Question: What is biomarker?A.) A biological therapy for a diseaseB.) A measurable characteristic by which presence or severity of a disease can be indicatedC.) A symptom of a diseaseD.) A... more
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11/04/20

Important question can someone help me?
After several steps of protein purification, your protein yield is lower than you would expect. You suspect a large amount of autolysis (protein degradation) of your sample. How might you minimise... more
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10/17/20

How to answer this question?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
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Biostatistics Science Biology Chemistry

10/12/20

Can someone help me please?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
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Biostatistics Science Biology Chemistry

10/12/20

Can someone tell me how I should answer this question?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
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Biostatistics Science Biology Chemistry

10/08/20

Can someone help me please?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
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Biostatistics Science Biology Chemistry

10/08/20

Can someone help me please?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
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Biostatistics

10/05/20

Biostatistics z-score problem
What value would be two standard deviations above the mean. Keep several decimal places. The five values in the data set are 9, 13, 16, 19, 23.
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Biostatistics Biology Research Epidemiology

09/25/20

I want to know how is the following article an example of case control study?
https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0231687&type=printable
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Biostatistics Math Algebra

09/24/20

Rewrite the equation v = e^(2w+9x-16y+64z) as the product of four terms.
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Biostatistics Statistics

09/21/20

STATISTICS QUESTION
Use the information as the events follow:Let E1 be A beats B in round-robin tournament and P(E1)=0.7Let E2 be A beats C in round-robin tournament and P(E2)=0.8Let E3 be B beats C in round-robin... more
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Biostatistics

09/17/20

Normal Distribution Example
The SAT scores follow N (1100,200)(a) What is the 95th percentile for SAT scores ?(b) What is the 97.5th percentile for SAT scores ?
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Biostatistics Statistics

09/16/20

Statistics question, please help me understand
Assuming the 95% confidence interval of your group difference is [-5,15], which of the following would be a plausible 90% confidence interval? [-8,18] [8,20] [-2,12] [-5,3]
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Biostatistics Math Statistics Mathematics

08/22/20

Give the P-value for the associated two sided T test.

A pharmaceutical company is interested in testing a therapeutic agent that can potentially lowerblood pressure. Their initial examination considers only subjects who received the therapy atbaseline... more
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Biostatistics

08/10/20

Biostatistics question
A vaccine trial of measles vaccine was conducted in Ahmedabad. It was found that in 342 children who received the vaccine, 11 suffered from measles whereas in 256 children who were not vaccinated... more
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Biostatistics Math Statistics Probability

07/09/20

Biostatistics/ Probability
Suppose that it is known that a fraction 0.001 of the people in a town have tuberculosis (TB). A TB test is available. The sensitivity of a given test is the probability of correctly diagnosing a... more
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Biostatistics

07/07/20

an urn contains 8 orange balls and 7 green balls. If 7 balls at random are chosen what is probability that he will select 3 orange balls and 4 green

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Biostatistics

06/26/20

experiments under natural conditions- randomisation, experimetal units (N)
Hello,I have question regarding to a research paper. In this reseach paper they test whether the probiotic supplementation to the diet affects the growth performance and immune responses of... more
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Biostatistics Epidemiology

05/22/20

Can two students be tutored at one time?
Donna seems like a fantastic choice! Does she have this capability?
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Biostatistics Math Calculus Precalculus

05/07/20

What is the percentage of people taking the test score between 370 and 592?
The mean is 592, the standard deviation is 111, it uses the 68–95–99.7 rule
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04/12/20

P1. The heights of adult men in the United States are approximately normally distributed with a mean of 70 inches and a standard deviation of 3 inches.

P1. The heights of adult men in the United States are approximately normally distributed with a mean of 70 inches and a standard deviation of 3 inches. a. Actor Michael B. Jordan is 6’0” (72”)... more
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Biostatistics Biology Anatomy Physiology

04/04/20

Microbiology Epidemiology
Microbiology Epidemiology Microbiology Epidemiology Microbiology Epidemiology Microbiology Epidemiology
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Biostatistics

03/24/20

Biosatistics probability problem
Nine percent of the population has blood type B. If we choose 18 people at random, what is the probability that three will have blood type B?
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