In the following probability​ distribution, the random variable x represents the number of activities a parent of a 6 th dash to 8 th​-grade student is involved in. Complete parts​ (a) through​ (f) below. x 0 1 2 3 4 ​P(x) 0.258 0.386 0.231 0.055 0.070 Question content area bottom Part 1 ​(a) Verify that this is a discrete probability distribution. This is a discrete probability distribution because the sum of the probabilities is enter your response here and each probability is ▼ greater than or equal to 0. greater than 0 and less than 1. between 0 and 1, inclusive. less than or equal to 1. Part 2 ​(b) Graph the discrete probability distribution. Choose the correct graph below. A. 0 1 2 3 4 0 0.1 0.2 0.3 0.4 0.5 A histogram has a horizontal axis labeled from 0 to 4 in intervals of 1 and a vertical axis labeled from 0 to 0.5 in intervals of 0.1 has five vertical lines positioned on the horizontal axis tick marks. The approximate heights of the vertical lines are as follows, with the horizontal coordinate listed first and the line height listed second: 0, 0.26; 1, 0.39; 2, 0.23; 3, 0.06; 4, 0.07. B. 0 1 2 3 4 0 0.1 0.2 0.3 0.4 0.5 A histogram has a horizontal axis labeled from 0 to 4 in intervals of 1 and a vertical axis labeled from 0 to 0.5 in intervals of 0.1 has five vertical lines positioned on the horizontal axis tick marks. The approximate heights of the vertical lines are as follows, with the horizontal coordinate listed first and the line height listed second: 0, 0.39; 1, 0.06; 2, 0.26; 3, 0.23; 4, 0.07. C. 0 1 2 3 4 0 0.1 0.2 0.3 0.4 0.5 A histogram has a horizontal axis labeled from 0 to 4 in intervals of 1 and a vertical axis labeled from 0 to 0.5 in intervals of 0.1 has five vertical lines positioned on the horizontal axis tick marks. The approximate heights of the vertical lines are as follows, with the horizontal coordinate listed first and the line height listed second: 0, 0.23; 1, 0.06; 2, 0.07; 3, 0.26; 4, 0.39. D. 0 1 2 3 4 0 0.1 0.2 0.3 0.4 0.5 A histogram has a horizontal a