1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andrezito [222]
2 years ago
11

An exam consists of 10 true-or-false questions. If a student guesses at every answer, what is the probability that he or she wil

l answer exactly 6 questions correctly?
Mathematics
1 answer:
Bond [772]2 years ago
5 0
1/2 x 1/2 x 1/2 x 1/2 x 1/2 x 1/2 = 1/64.

I think there is is 1/64 chance.
You might be interested in
Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 50 provided a sample mean of 19.4. The population stand
goblinko [34]

Answer: p-value is 0.016.

Step-by-step explanation:

Since we have given that

H_0:\mu=20\\\\H_a:\mu

Sample mean = 19.4

Sample size n = 50

Standard deviation = 2

We need to find the test statistic value which is given by

z=\dfrac{\bar{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\\\z=\dfrac{19.4-20}{\dfrac{2}{\sqrt{50}}}\\\\\\z=\dfrac{-0.6}{0.28}\\\\z=-2.14

p-value is given by

P(Z>Z_{critical})\\\\=P(Z>-2.14)\\\\=0.016

Hence, p-value is 0.016.

8 0
2 years ago
At the beginning of 2012 Jacob's saving account had $675.20. He deposited $40 each month and earned $66.50 interest for the year
meriva
Not sure but i think it’s B
5 0
3 years ago
These two polygons are similar. ​
Nady [450]

9

yea........ hi how you doinn

4 0
2 years ago
Abdul rolls a fair six-sided die and a fair four-sided die simultaneously. The sample space of all possible
gregori [183]

Answer: 7/24

Step-by-step explanation:

Probability is the branch of mathematics that is concerned with the numerical descriptions of how likely an event will occur or how likely a proposition is true

The probability that the six-sided die is three or Abdul rolls doubles is 7/24. The calculation is attached.

4 0
3 years ago
What is the sum of the measures of the interior angles of a 14-gon?
tensa zangetsu [6.8K]
The answer would be 154.3
4 0
2 years ago
Read 2 more answers
Other questions:
  • Explain why numbers with a 5 in ones place or not prime numbers
    14·2 answers
  • N7=48 what does n mean ??
    10·2 answers
  • What’s the last angle pls add steps !!!
    5·1 answer
  • A coffee shop uses two different-sized bins to store coffee beans. The volume of the smaller bin is r cubic inches and the volum
    5·1 answer
  • 2(r–2)≥8<br> jdjdhjdhjhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
    9·1 answer
  • A triangle has a base of 8 cm and a height of 12 cm. What is the area of the triangle?​
    9·2 answers
  • Whats the range of y=2x-7
    14·2 answers
  • It is 76°f at the 6000-foot level of a mountain, and 49°f at the 12,000-foot level of the mountain. write a linear equation to f
    14·1 answer
  • The price of a dress in reduced by 60%. When the dress it is reduced by 60% of the reduced price. If the price of the dress afte
    15·1 answer
  • A -cd for a = 9, b = -3, c = -2 , d= 7
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!