Mathematics, 07.10.2020 14:01, sam10146
Please help, I'll give you brainliest
Let x denote the number of missing pieces in a randomly selected 500-piece puzzle from a local thrift shop. The variable x has the following probability distribution:
x 0 1 2 3 4
P(X) 0.33 0.44 0.2 0.02 0.01
Calculate and interpret σx.
0.33; if we were to select many puzzles randomly, we would expect about 0.33 to have all their pieces
0.83; if we were to select many puzzles randomly, the number of missing puzzle pieces would typically vary about 0.83 from the mean
0.94; if we were to select many puzzles randomly, we would expect about 0.94, on average, to be missing pieces
0.2; if we were to select many puzzles randomly, the number of missing puzzle pieces would typically vary about 0.2 from the mean
1.58; if we were to select many puzzles randomly, we would expect about 1.58, on average, to be missing pieces
Answers: 3
Mathematics, 21.06.2019 14:00, pandagorwar
Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?
Answers: 2
Mathematics, 22.06.2019 01:30, jasminespets
What is the surface area of a cube with the volume of 729 ft?
Answers: 1
Mathematics, 22.06.2019 01:40, ashleygarcia0884
At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec
Answers: 2
Please help, I'll give you brainliest
Let x denote the number of missing pieces in a randomly selec...
Mathematics, 14.01.2021 02:20