Question

Please answer excercise 1

VOLUNTARY assignment to be delivered on Thursday, February 14 during the class period. A single blade (razor) made directly by hand. You will be assigned 5 points on the first exam to those who deliver these two complete exercises. In both cases the original data and the graph will be delivered as described below.

1) Select a 25-cent dollar coin.

2) Select an initial position to launch the coin as required in each exercise.

First exercise

Define a random variable X1: = Number of 'heads' resulting in 5 launches

Record 20 values ​​of X1. This implies that you must throw the coin 5 x 20 = 100 times.

Make a graph x, and where the x-axis shows the possible values ​​of X1 and the y-axis show the frequency (the number of times a particular value of X1 occurred).

Second exercise

Define a random variable X2: = Number of launches until 3 heads occur.

Record 20 values ​​of X2.

Make a graph x, and where the x-axis shows the possible values ​​of X2 and the y-axis show the frequency (the number of times a particular value of X2 occurred)

Answer 1

Answer Ex:1

After throwing coin hundred times with set of 5 launches following frequency table occurs.

Graph of this frequency count look like below:

Answer Ex:2

After performing 20 trial to get obtain the 3 heads occurs we have following frequency count.

Graph of this frequency count look like below: