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
Shalnov [3]
3 years ago
5

Amit is going to guess on all

Mathematics
2 answers:
tigry1 [53]3 years ago
7 0

Answer:

Close to five but not exactly 5

Step-by-step explanation:

Khan Academy

Papessa [141]3 years ago
4 0

Answer:

The best prediction for the number of questions that Amit will answer correctly is 5.

Step-by-step explanation:

Each question can be considered as an independent Bernoulli trial. This implies that we have 20 independent trials.

Now, the probability of making a correct guess on each question is;

1/4. This is because we have 4 choices per question and only 1 is correct.

If we now let the random variable X denote the number of questions that Amit will answer correctly, then X is a Binomial random variable with parameters;

20 and 1/4.

The expected number of correct answers is simply the product of these two values;

20 * (1/4) = 5

Therefore, the best prediction for the number of questions that Amit will answer correctly is 5

You might be interested in
ANSWERRRR QUICKKKK PLEASEEEE
Brums [2.3K]

Answer: sqrt(2)/2  which is choice D

======================================================

Explanation

(3pi/4) radians converts to 135 degrees after multiplying by the conversion factor (180/pi).

The angle 135 degrees is in quadrant 2. We subtract the angle 135 from 180 to find the reference angle

180-135 = 45

Then you can use a 45-45-90 triangle to determine that the ratio of opposite over hypotenuse is sqrt(2)/2

sine is positive in quadrant 2

------------

Alternatively, you can use a unit circle. Refer to the diagram below. In red, I've circled the angle 3pi/4 radians. The terminal point for this angle has a y coordinate of sqrt(2)/2

Recall that y = sin(theta).

6 0
3 years ago
What is the magnitude of 5-3i
VikaD [51]
Hi the answer for your question is 34
5 0
3 years ago
Given the triangle below, what is the length of the third side, rounded to the nearest whole number?
Leno4ka [110]

Answer:

Step-by-step explanation:

You need the Law of Cosines for this, namely:

x^2=21^2+14^2-2(21)(14)cos58 where x is the missing side.

x^2=441+196-311.5925 and

x^2=325.4075 so

x = 18.0 or just 18

7 0
3 years ago
A businessperson is charged a $4.96 monthly finance charge on a bill of $283.15.
gladu [14]

Answer:

  1.75%

Step-by-step explanation:

The monthly interest rate is the interest amount divided by the base on which it is computed, expressed as a percentage.

  $4.96/$283.15 × 100% ≈ 1.75172% ≈ 1.75%

3 0
2 years ago
When machineminushours are used as an overhead costminusallocation base and annual leasing costs for equipment unexpectedly​ inc
Eva8 [605]

Answer:

D. unfavorable fixed overhead flexible minus budget variance

Step-by-step explanation:

As the cost of the equipment is increasing the fixed efficiency and idle capacity variance would be unfavorable resulting in an  unfavorable fixed overhead flexible minus budget variance.

The expenses of the machinery are the fixed indirect costs which result in fixed overhead variances. Since it is related to the working of the machinery it would result in efficiency and idle capacity variances that in turn would give unfavorable fixed overhead of the flexible minus budget variance.

5 0
3 years ago
Other questions:
  • Tina's aquarium has a capacity of 40 gallons or water. She plans to stock her aquarium with 0.25 inches of fish per quart of cap
    10·1 answer
  • Stephen averaged 32.3 points a game. LeBron averaged 29.4 points a game. What was the difference between their averages?
    15·1 answer
  • Simplify products and quotients
    14·1 answer
  • If you reflect the point (6, -2) across the y-axis, what is the new point?
    14·1 answer
  • Please help school is ending soon and i just need a little bit more help
    10·2 answers
  • Find the slope of a line that passes through the points (-2,6) and (8,4)​
    10·2 answers
  • Simplify: 6 - 4[3(2x + 5) - 4x]
    13·2 answers
  • ||25 POINTS WILL GIVE BRAINLIEST||
    15·2 answers
  • A survey was given to people who own a certain type of car. What percent of the people surveyed were completely satisfied with t
    11·1 answer
  • What type of angle is each angle in this figure?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!