Since the y intercept is negative, it is seen in this equation that the b value (the y intercept) is also negative. Since the slope is increasing upward, we know that the slope is greater than 1 and is going upward, and it matches with the equation since it matches with both of the requirements.
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Its easier to find the complement of that instead so you find the probability of 1 and 0 The .2 in the answer is the probability of each question 1/5 (10 C 0) x .2^0 (1-.2)^10-0=.1074 (10 C 1) x .2^1 (1-.2)^10-1=.2684 .2684+.1074=.3758 and that's the complement so 1 - .3758= .6242 I too have a stats exam on this tomorrow lol
